What makes the electron beam move backwards and forwards across the screen in cathode ray oscillpscopes?
Q. The deflection of a beam of electrons by an electric field is used in cathode ray oscilloscopes. What makes the electron beam move backwards and forwards across the screen? And, what makes the electron beam move up and down?
Asked by Wooo H - Fri Feb 12 05:27:53 2010 - - 2 Answers - 0 Comments
A. Yeah exactly, the deflecting magnets around the electron gun deflect the electron beam from it's original path. let me tell you how. We know that the electrons are negatively charged, and also that negatively charged particles are attracted towards positive charged substances (here plates). difflection plates are nothing but two plates having potential differnce between them. that means one has positive charge and other has negative charge of the same amount. The verticle difflection plate has its positive plate either up or down, while the horizontle positive difflection pate can be on either side of CRO (Cathod ray oscilloscope). When we have to make a displacement of the beam verticaly than we give a positive charge to the verticle… [cont.]
Answered by Rohit R - Fri Feb 12 06:18:19 2010
Q. The deflection of a beam of electrons by an electric field is used in cathode ray oscilloscopes. What makes the electron beam move backwards and forwards across the screen? And, what makes the electron beam move up and down?
Asked by Wooo H - Fri Feb 12 05:27:53 2010 - - 2 Answers - 0 Comments
A. Yeah exactly, the deflecting magnets around the electron gun deflect the electron beam from it's original path. let me tell you how. We know that the electrons are negatively charged, and also that negatively charged particles are attracted towards positive charged substances (here plates). difflection plates are nothing but two plates having potential differnce between them. that means one has positive charge and other has negative charge of the same amount. The verticle difflection plate has its positive plate either up or down, while the horizontle positive difflection pate can be on either side of CRO (Cathod ray oscilloscope). When we have to make a displacement of the beam verticaly than we give a positive charge to the verticle… [cont.]
Answered by Rohit R - Fri Feb 12 06:18:19 2010
In which of the following ways does an electron in a hydrogen atom differ from a radio wave?
Q. In which of the following ways does an electron in a hydrogen atom differ from a radio wave? (The mass of an electron is 9.11 10 31 kg. The diameter of a hydrogen atom is about 0.1 nm.) The electron will have a longer wavelength. The electron will have a slower velocity. The energy of the electron will be quantized. The electron will not have an amplitude.
Asked by Foxy - Sun Feb 7 21:17:49 2010 - - 1 Answers - 0 Comments
A. The electron will have a slower velocity. All electromagnetic waves move at the speed of light, radio waves included. Electrons have a finite mass and therefore move slower than the speed of light.
Answered by gintable - Sun Feb 7 21:58:03 2010
Q. In which of the following ways does an electron in a hydrogen atom differ from a radio wave? (The mass of an electron is 9.11 10 31 kg. The diameter of a hydrogen atom is about 0.1 nm.) The electron will have a longer wavelength. The electron will have a slower velocity. The energy of the electron will be quantized. The electron will not have an amplitude.
Asked by Foxy - Sun Feb 7 21:17:49 2010 - - 1 Answers - 0 Comments
A. The electron will have a slower velocity. All electromagnetic waves move at the speed of light, radio waves included. Electrons have a finite mass and therefore move slower than the speed of light.
Answered by gintable - Sun Feb 7 21:58:03 2010
How can you tell the number of valence electrons Selenium has by its electron configuration?
Q. The electron configuration is: 1s^2, 2s^2, 2p^6, 3s^2, 3p^6, 4s^2, 3d^10, 4p^4 . It has 6 valence electrons. Nonetheless, the valence shell is 4, and the highest number of electrons on one of the valence shell ones is 4 electrons, so how does it have 6?
Asked by hmm - Sat Dec 13 18:01:02 2008 - - 1 Answers - 0 Comments
A. The valence electrons are the electrons in the outermost shell (not subshell), which in this case corresponds to the n=4 principal energy level. Selenium indeed has 6 electrons in n=4. These are the two 4s electrons and the four 4p electrons. I hope this helps!
Answered by jpsazii - Sat Dec 13 19:38:14 2008
Q. The electron configuration is: 1s^2, 2s^2, 2p^6, 3s^2, 3p^6, 4s^2, 3d^10, 4p^4 . It has 6 valence electrons. Nonetheless, the valence shell is 4, and the highest number of electrons on one of the valence shell ones is 4 electrons, so how does it have 6?
Asked by hmm - Sat Dec 13 18:01:02 2008 - - 1 Answers - 0 Comments
A. The valence electrons are the electrons in the outermost shell (not subshell), which in this case corresponds to the n=4 principal energy level. Selenium indeed has 6 electrons in n=4. These are the two 4s electrons and the four 4p electrons. I hope this helps!
Answered by jpsazii - Sat Dec 13 19:38:14 2008
What else always happens when an electron is produced from energy in a particle accelerator?
Q. What else always happens when an electron is produced from energy in a particle accelerator? 1. The electron begins moving at extremely high speed. 2. The electron releases a tremendous amount of energy. 3. The electron quickly becomes part of an atom. 4. An antielectron (positron) is also produced.
Asked by Daone - Sun Nov 8 11:40:20 2009 - - 2 Answers - 0 Comments
A. Should the electron a positron ever come in contact with each other, an effect called annihilation will destroy both of them and release the energy used to create them in a very large (relative to an electron) explosion.
Answered by Rick - Sun Nov 8 11:45:04 2009
Q. What else always happens when an electron is produced from energy in a particle accelerator? 1. The electron begins moving at extremely high speed. 2. The electron releases a tremendous amount of energy. 3. The electron quickly becomes part of an atom. 4. An antielectron (positron) is also produced.
Asked by Daone - Sun Nov 8 11:40:20 2009 - - 2 Answers - 0 Comments
A. Should the electron a positron ever come in contact with each other, an effect called annihilation will destroy both of them and release the energy used to create them in a very large (relative to an electron) explosion.
Answered by Rick - Sun Nov 8 11:45:04 2009
What is the difference between electronegativity and electron affinity?
Q. What is the difference between electronegativity and electron affinity? My book says: electron affinity: the ability of an atom to attact additional electrons and electronegativity: the ability of an atom to attract a bonding pair of electrons to itself when bonded to another atom. and i can see that obviously those are two different statements and that's the difference between them, but i don't understand the differerence. thanks
Asked by j - Sat Mar 10 17:05:05 2007 - - 2 Answers - 0 Comments
A. According to those definitions the electron affinity is to attract any electron. The electronegativity is to attract the electrons in a covalent bond between that atom and another. The electronegativity tells which of the atoms involved in the bond will have a larger attraction for the pair of shared electrons.
Answered by physandchemteach - Sat Mar 10 17:16:04 2007
Q. What is the difference between electronegativity and electron affinity? My book says: electron affinity: the ability of an atom to attact additional electrons and electronegativity: the ability of an atom to attract a bonding pair of electrons to itself when bonded to another atom. and i can see that obviously those are two different statements and that's the difference between them, but i don't understand the differerence. thanks
Asked by j - Sat Mar 10 17:05:05 2007 - - 2 Answers - 0 Comments
A. According to those definitions the electron affinity is to attract any electron. The electronegativity is to attract the electrons in a covalent bond between that atom and another. The electronegativity tells which of the atoms involved in the bond will have a larger attraction for the pair of shared electrons.
Answered by physandchemteach - Sat Mar 10 17:16:04 2007
How far is the electron from the origin when it momentarily stops?
Q. An electron moving along the x axis has a position given by x = 19te^-4t m, where t is in seconds. How far is the electron from the origin when it momentarily stops?
Asked by freddydiaz25 - Wed Feb 25 00:47:53 2009 - - 1 Answers - 0 Comments
A. The electron "stops momentarily" when its velocity is 0. If x(t) = 19 t e^-4t, then v(t) = dx/dt = v(t) = 19 [e^-4t + t(-4)e^-4t] = 19 e^-4t [1 - 4t] so v(t) = 0 when [1 - 4t] = 0 solve for t and plug into x(t) to get your answer.
Answered by simplicitus - Sat Feb 28 02:55:54 2009
Q. An electron moving along the x axis has a position given by x = 19te^-4t m, where t is in seconds. How far is the electron from the origin when it momentarily stops?
Asked by freddydiaz25 - Wed Feb 25 00:47:53 2009 - - 1 Answers - 0 Comments
A. The electron "stops momentarily" when its velocity is 0. If x(t) = 19 t e^-4t, then v(t) = dx/dt = v(t) = 19 [e^-4t + t(-4)e^-4t] = 19 e^-4t [1 - 4t] so v(t) = 0 when [1 - 4t] = 0 solve for t and plug into x(t) to get your answer.
Answered by simplicitus - Sat Feb 28 02:55:54 2009
How fast is the electron moving just before it reaches the positive plate?
Q. An electron is released from rest at the negative plate of a parallel plate capacitor. The charge per unit area on each plate is = 2.7 x 10-7 C/m2, and the plates are separated by a distance of 1.6 x 10-2 m. How fast is the electron moving just before it reaches the positive plate? Thank you KNR , great solution
Asked by a - Mon Feb 22 01:41:30 2010 - - 1 Answers - 0 Comments
A. potential difference between the plates V = E d = sigma x d / eo, where 'sigma' is the charge density and 'eo' is the permittivity of air then, if 'v' is the velocoty of electron at the positive plate, by conservation of energy 1 / m v^2 = V e or, v = square root of ( 2 V e / m ) = square root of ( 2 sigma d x e / eo m ) = square root of [ 2 x 2.7x10^-7 x 1.6x10^-2 x1.76x10^11 / 9 x10^-12] ie., v = 1.3 x10^7 m /sec ( on simplification )
Answered by knr - Mon Feb 22 01:49:59 2010
Q. An electron is released from rest at the negative plate of a parallel plate capacitor. The charge per unit area on each plate is = 2.7 x 10-7 C/m2, and the plates are separated by a distance of 1.6 x 10-2 m. How fast is the electron moving just before it reaches the positive plate? Thank you KNR , great solution
Asked by a - Mon Feb 22 01:41:30 2010 - - 1 Answers - 0 Comments
A. potential difference between the plates V = E d = sigma x d / eo, where 'sigma' is the charge density and 'eo' is the permittivity of air then, if 'v' is the velocoty of electron at the positive plate, by conservation of energy 1 / m v^2 = V e or, v = square root of ( 2 V e / m ) = square root of ( 2 sigma d x e / eo m ) = square root of [ 2 x 2.7x10^-7 x 1.6x10^-2 x1.76x10^11 / 9 x10^-12] ie., v = 1.3 x10^7 m /sec ( on simplification )
Answered by knr - Mon Feb 22 01:49:59 2010
How many unpaired electrons are in the ground state electron configuration for Mn?
Q. 1.) How many unpaired electrons are in the ground state electron configuration for Mn? 2... How many unpaired electrons are in the ground state electron configuration for Fe?
Asked by BeNgALTiGeR - Sat Oct 18 16:51:39 2008 - - 1 Answers - 0 Comments
A. 1) 5 unpaired 3d electrons. 2) 4 unpaired 3d electrons.
Answered by Lord Ezane - Sat Oct 18 16:56:00 2008
Q. 1.) How many unpaired electrons are in the ground state electron configuration for Mn? 2... How many unpaired electrons are in the ground state electron configuration for Fe?
Asked by BeNgALTiGeR - Sat Oct 18 16:51:39 2008 - - 1 Answers - 0 Comments
A. 1) 5 unpaired 3d electrons. 2) 4 unpaired 3d electrons.
Answered by Lord Ezane - Sat Oct 18 16:56:00 2008
What are the electron configurations for the following elements?
Q. In our class we are learning about orbitals and electron configurations. I dont know how to answer the following on these elements. O 2- F -, Na+ i know that you could go 1s^2 2s^2 2p^6 3s^2 3p^4 as oxygen is the highest number. but would i just write the same thing for O 2- as1s^2 2s^2 2p^6 3s^2 3p^6 because it gained 2 electrons F- as 1s^2 2s^2 2p^6 because it gained 1 electron and Na+ as 1s^2 2s^2 2p^6 because it lost an electron? thanks for your help and i appreciate it.
Asked by john s - Wed Oct 10 18:16:19 2007 - - 1 Answers - 0 Comments
A. you've got the right idea, but you've added too many electrons. oxygen is still in row 2, so it has the configuration 1s^2 2s^2 2p^6 as well. all three ions have this configuration, which is the same as saying [Ne].
Answered by spgoddess1996 - Wed Oct 10 18:21:58 2007
Q. In our class we are learning about orbitals and electron configurations. I dont know how to answer the following on these elements. O 2- F -, Na+ i know that you could go 1s^2 2s^2 2p^6 3s^2 3p^4 as oxygen is the highest number. but would i just write the same thing for O 2- as1s^2 2s^2 2p^6 3s^2 3p^6 because it gained 2 electrons F- as 1s^2 2s^2 2p^6 because it gained 1 electron and Na+ as 1s^2 2s^2 2p^6 because it lost an electron? thanks for your help and i appreciate it.
Asked by john s - Wed Oct 10 18:16:19 2007 - - 1 Answers - 0 Comments
A. you've got the right idea, but you've added too many electrons. oxygen is still in row 2, so it has the configuration 1s^2 2s^2 2p^6 as well. all three ions have this configuration, which is the same as saying [Ne].
Answered by spgoddess1996 - Wed Oct 10 18:21:58 2007
As an electron falls from a higher level to a lower level in an atom does it absorb a photon?
Q. What exactly happens when an electron falls from a higher to a lower level in an atom? Thanks.
Asked by Paul - Tue Feb 16 20:51:12 2010 - - 1 Answers - 0 Comments
A. No. When an electron falls from a higher level to a lower level in an atom it emits a photon. It is losing energy going into a lower orbital and it needs to release it. When an electron absorbs a photon, it gains energy and moves into a higher orbital. It takes energy (absorb a photon) to get to a higher orbital. It gives off energy (emits a photon) when it drops to a lower orbital.
Answered by bw022 - Tue Feb 16 21:14:14 2010
Q. What exactly happens when an electron falls from a higher to a lower level in an atom? Thanks.
Asked by Paul - Tue Feb 16 20:51:12 2010 - - 1 Answers - 0 Comments
A. No. When an electron falls from a higher level to a lower level in an atom it emits a photon. It is losing energy going into a lower orbital and it needs to release it. When an electron absorbs a photon, it gains energy and moves into a higher orbital. It takes energy (absorb a photon) to get to a higher orbital. It gives off energy (emits a photon) when it drops to a lower orbital.
Answered by bw022 - Tue Feb 16 21:14:14 2010
How much work does the field do on the electron?
Q. An electron with charge 1.60 10 19 C moves a distance of 3.17 mm in the negative x direction in a uniform electric field of 125 N/C that points in the positive x direction. (a) How much work does the field do on the electron? (b) What is the change in the potential energy of the electron? (c) Through what potential difference does the electron move?
Asked by Jaylen R - Thu Oct 25 19:09:05 2007 - - 1 Answers - 0 Comments
A. Work = F d = q E d where q is electric charge, E is the electric field, and d is the distance the electron moved. (a) W = ( 1.60 10^ 19 C)(125 N/C) (-3.17 x 10^-3) (b) Change in PE = -W (c) Potential difference = V = Ed = (125 N/C) (-3.17 x 10^-3)
Answered by PhysicsDude - Fri Oct 26 02:26:58 2007
Q. An electron with charge 1.60 10 19 C moves a distance of 3.17 mm in the negative x direction in a uniform electric field of 125 N/C that points in the positive x direction. (a) How much work does the field do on the electron? (b) What is the change in the potential energy of the electron? (c) Through what potential difference does the electron move?
Asked by Jaylen R - Thu Oct 25 19:09:05 2007 - - 1 Answers - 0 Comments
A. Work = F d = q E d where q is electric charge, E is the electric field, and d is the distance the electron moved. (a) W = ( 1.60 10^ 19 C)(125 N/C) (-3.17 x 10^-3) (b) Change in PE = -W (c) Potential difference = V = Ed = (125 N/C) (-3.17 x 10^-3)
Answered by PhysicsDude - Fri Oct 26 02:26:58 2007
How do I find the electron configurations of these elements?
Q. I really don't understand how to write the electron configuration of any element. I need to get the electron configuration for V, Bi, Zr, and Rn. I have seen like 2 ways to write them but i need the format with like the s, p, d, f and stuff like that. Please help!
Asked by mtanner - Sun Feb 1 13:32:44 2009 - - 1 Answers - 0 Comments
A. V: 1s2 2s2 2p6 3s2 3p6 4s2 3d3 Bi: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p3 Zr: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d2 Rn: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6
Answered by drbillmacmo - Sun Feb 1 13:48:31 2009
Q. I really don't understand how to write the electron configuration of any element. I need to get the electron configuration for V, Bi, Zr, and Rn. I have seen like 2 ways to write them but i need the format with like the s, p, d, f and stuff like that. Please help!
Asked by mtanner - Sun Feb 1 13:32:44 2009 - - 1 Answers - 0 Comments
A. V: 1s2 2s2 2p6 3s2 3p6 4s2 3d3 Bi: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p3 Zr: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d2 Rn: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6
Answered by drbillmacmo - Sun Feb 1 13:48:31 2009
How to count valence electrons of an element just by looking at its electron configuration?
Q. On a multiple choice ? I had, electron configurations of various elements were given, and a ? was "which of the following elements {by looking at its electron config.} has one valence electron. The answer ended up being Cr, but how can you tell?
Asked by bloopers012345 - Fri Dec 5 01:01:47 2008 - - 1 Answers - 0 Comments
A. Valence electrons are the number of electrons in the outer most energy level. The electron configuration for Cr is [Ar] 3d5 4s1 since 4 is the outer most level, you see it has 1 electron. If you look at F, it has an electron configuration of 1s2 2s2 2p5. It's outer most level is 2 so if you add all the electrons in 2 , it = 7 valence electrons. The reason Cr is not 3d4 4s2 is that the half filled d sublevel is at a lower energy state so the e moves out of the 4s in order to give it the lower energy configuration.
Answered by photocell75 - Fri Dec 5 01:13:37 2008
Q. On a multiple choice ? I had, electron configurations of various elements were given, and a ? was "which of the following elements {by looking at its electron config.} has one valence electron. The answer ended up being Cr, but how can you tell?
Asked by bloopers012345 - Fri Dec 5 01:01:47 2008 - - 1 Answers - 0 Comments
A. Valence electrons are the number of electrons in the outer most energy level. The electron configuration for Cr is [Ar] 3d5 4s1 since 4 is the outer most level, you see it has 1 electron. If you look at F, it has an electron configuration of 1s2 2s2 2p5. It's outer most level is 2 so if you add all the electrons in 2 , it = 7 valence electrons. The reason Cr is not 3d4 4s2 is that the half filled d sublevel is at a lower energy state so the e moves out of the 4s in order to give it the lower energy configuration.
Answered by photocell75 - Fri Dec 5 01:13:37 2008
In terms of electron configuration, what are the trends of the periodic table?
Q. I need trend explained in terms of electron configuration. The trend for atomic radius across the periodic table from left to right and down a group. Same thing for ionization energy and electronegativity. I get most of the trends, but this one is really confusing. I dunno, maybe its the wording.
Asked by TeeJay - Tue Oct 2 22:14:07 2007 - - 3 Answers - 0 Comments
A. on the periodic table the, when going across you have to count it as s1,s2,p1 and so on you count untill you get to element you want bottom of thiis web page theres a picture to help you out
Answered by johnnydepp2010 - Tue Oct 2 22:40:57 2007
Q. I need trend explained in terms of electron configuration. The trend for atomic radius across the periodic table from left to right and down a group. Same thing for ionization energy and electronegativity. I get most of the trends, but this one is really confusing. I dunno, maybe its the wording.
Asked by TeeJay - Tue Oct 2 22:14:07 2007 - - 3 Answers - 0 Comments
A. on the periodic table the, when going across you have to count it as s1,s2,p1 and so on you count untill you get to element you want bottom of thiis web page theres a picture to help you out
Answered by johnnydepp2010 - Tue Oct 2 22:40:57 2007
How can the electron arrangement be determined for a nuetral atom?
Q. I don't understand how to figure out the electron arrangement for a nuetral atom. Can someone please explain it to me? Thanks!
Asked by ily - Sun Jan 18 14:02:41 2009 - - 1 Answers - 0 Comments
A. It's protons and electrons will have the same number - you probably know what element you're dealing with so now you know the number of electrons. Then put those into their relative quantum shells and sub orbitals.
Answered by Craggles - Sun Jan 18 18:53:36 2009
Q. I don't understand how to figure out the electron arrangement for a nuetral atom. Can someone please explain it to me? Thanks!
Asked by ily - Sun Jan 18 14:02:41 2009 - - 1 Answers - 0 Comments
A. It's protons and electrons will have the same number - you probably know what element you're dealing with so now you know the number of electrons. Then put those into their relative quantum shells and sub orbitals.
Answered by Craggles - Sun Jan 18 18:53:36 2009
How do you find the impact speed and ultimate speed of an electron?
Q. The potential difference between the two poles of an automobile battery is 12.0 V. Suppose that you place such a battery in empty space and that you release an electron at a point next to the negative pole of the battery. The electron will then be pushed away by the electric force and move off in some direction. (a) If the electron strikes the positive pole of the battery what will be its impact speed? (b) If, instead, the electron moves away toward infinity, what will be its ultimate speed?
Asked by L - Thu Mar 13 09:51:48 2008 - - 1 Answers - 0 Comments
A. a) The change in potential energy of the electron is -12.0 eV, therefor the change in kinetic energy must be +12.0 eV. 12.0 eV = 1.923 10^-18 J. Use K = 1/2 m v^2 with m=9.109 10^-31 kg to find that v = 2.05 10^6 m / s b) I always like to do problems like this backwards. Suppose you start with an electron at rest and at an infinite distance. While keeping it at infinity, move it around so that it is equidistant from both poles. (No work to do this.) Now, while keeping it equidistant from both poles, start moving it toward the point halfway between the poles. This doesn't require any work because whatever force the positive pole applies (in the direction) of movement is canceled by the opposite force (in the direction of… [cont.]
Answered by Queuejares Tiyuvy - Thu Mar 13 10:47:04 2008
Q. The potential difference between the two poles of an automobile battery is 12.0 V. Suppose that you place such a battery in empty space and that you release an electron at a point next to the negative pole of the battery. The electron will then be pushed away by the electric force and move off in some direction. (a) If the electron strikes the positive pole of the battery what will be its impact speed? (b) If, instead, the electron moves away toward infinity, what will be its ultimate speed?
Asked by L - Thu Mar 13 09:51:48 2008 - - 1 Answers - 0 Comments
A. a) The change in potential energy of the electron is -12.0 eV, therefor the change in kinetic energy must be +12.0 eV. 12.0 eV = 1.923 10^-18 J. Use K = 1/2 m v^2 with m=9.109 10^-31 kg to find that v = 2.05 10^6 m / s b) I always like to do problems like this backwards. Suppose you start with an electron at rest and at an infinite distance. While keeping it at infinity, move it around so that it is equidistant from both poles. (No work to do this.) Now, while keeping it equidistant from both poles, start moving it toward the point halfway between the poles. This doesn't require any work because whatever force the positive pole applies (in the direction) of movement is canceled by the opposite force (in the direction of… [cont.]
Answered by Queuejares Tiyuvy - Thu Mar 13 10:47:04 2008
What happens when a compound gains an electron?
Q. What happens when a compound, such as O2, gains an electron? I know it becomes negatively charged but which oxygen atom would this new electron attach to?
Asked by Dude - Tue Sep 9 17:37:48 2008 - - 4 Answers - 0 Comments
A. think of electrons as a density instead of as a point... the electron density around the two atoms increases.
Answered by m w - Tue Sep 9 17:45:21 2008
Q. What happens when a compound, such as O2, gains an electron? I know it becomes negatively charged but which oxygen atom would this new electron attach to?
Asked by Dude - Tue Sep 9 17:37:48 2008 - - 4 Answers - 0 Comments
A. think of electrons as a density instead of as a point... the electron density around the two atoms increases.
Answered by m w - Tue Sep 9 17:45:21 2008
What phrase describes the electron transport chain in photosynthesis?
Q. What phrase describes the electron transport chain in photosynthesis? A. A chain of photosynthetic proteins located in the storma B. A collection of enzymes used to make ADP C. A series of proteins located in the thylakoid membrane D. A group of enzymes that carries energy to the Calvin Cycle
Asked by Reira - Mon Oct 6 22:36:27 2008 - - 2 Answers - 0 Comments
A. D
Answered by Chris M - Mon Oct 6 22:40:37 2008
Q. What phrase describes the electron transport chain in photosynthesis? A. A chain of photosynthetic proteins located in the storma B. A collection of enzymes used to make ADP C. A series of proteins located in the thylakoid membrane D. A group of enzymes that carries energy to the Calvin Cycle
Asked by Reira - Mon Oct 6 22:36:27 2008 - - 2 Answers - 0 Comments
A. D
Answered by Chris M - Mon Oct 6 22:40:37 2008
What type of electron configuration are the atoms trying to achieve when gaining or losing electrons?
Q. I have a Chemistry test tomorrow. /: Like, what I'm trying to ask is, what is the ultimate goal when gaining or losing electrons? You know, during ionization energy and electron affinity.
Asked by Immoral Conscience. - Sun Feb 28 12:58:13 2010 - - 2 Answers - 0 Comments
Q. I have a Chemistry test tomorrow. /: Like, what I'm trying to ask is, what is the ultimate goal when gaining or losing electrons? You know, during ionization energy and electron affinity.
Asked by Immoral Conscience. - Sun Feb 28 12:58:13 2010 - - 2 Answers - 0 Comments
What is the kinetic energy of the electron just as it reaches the positive plate?
Q. An electron is released from rest at the negative plate of a parallel plate capacitor and accelerates to the positive plate (see the drawing). The plates are separated by a distance of 1.2 cm, and the electric field within the capacitor has a magnitude of 2.2 x 106 V/m. What is the kinetic energy of the electron just as it reaches the positive plate?
Asked by Ah O - Sat Jan 23 12:26:45 2010 - - 1 Answers - 0 Comments
A. assuming a uniform electric field V/m = J/C/m 2.2E6 J/C/m * 0.012 m * 1.6E-19 C/e- * 1 e- = ___J the potential energy at the start = the Ke at the end I get about 4.3E-15 J
Answered by Old Science Guy - Sat Jan 23 12:40:19 2010
Q. An electron is released from rest at the negative plate of a parallel plate capacitor and accelerates to the positive plate (see the drawing). The plates are separated by a distance of 1.2 cm, and the electric field within the capacitor has a magnitude of 2.2 x 106 V/m. What is the kinetic energy of the electron just as it reaches the positive plate?
Asked by Ah O - Sat Jan 23 12:26:45 2010 - - 1 Answers - 0 Comments
A. assuming a uniform electric field V/m = J/C/m 2.2E6 J/C/m * 0.012 m * 1.6E-19 C/e- * 1 e- = ___J the potential energy at the start = the Ke at the end I get about 4.3E-15 J
Answered by Old Science Guy - Sat Jan 23 12:40:19 2010
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cargo.ucsc.edu
astro-ph
ue, 23 Feb 2010 01:36:20 GM
The . electron. -to-nucleon ratio or . electron. fraction is a key parameter in many astrophysical studies. Its value is determined by weak-interaction rates that are based on theoretical calculations subject to unknown uncertainties. ...
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