Electrons ?
Q. Please i need your help , how do i color code S.P.D.F electrons? if possible for the element Zirconium thank you for your help
Asked by number 1 office fan - Sun Feb 24 10:34:42 2008 - - 2 Answers - 0 Comments

A. Color doesn't matter. It is just there to help you learn and distinguish between different sub levels and orbitals.
Answered by dudas_91 - Sun Feb 24 10:39:15 2008

Where are electrons and protons located, according to Ernest Rutherford s atomic model?
Q. A. Electrons and protons are uniformly mixed throughout the cathode ray. B. Electrons and protons are uniformly mixed throughout the atom. C. Electrons are in the nucleus and protons orbit around the nucleus. D. Protons are in the nucleus and electrons orbit around the nucleus.
Asked by Jessica - Fri Oct 9 11:44:33 2009 - - 2 Answers - 0 Comments

A. D - rutherford discovered that atoms had a tiny positively charged nucleus through experimentation with alpha particles.
Answered by Gabriella - Fri Oct 9 11:53:48 2009

How are electrons from beta emissions different from electrons found in an atom?
Q. My chem teacher told us that electrons emitted from beta decay are different from the electrons you can find in an atom. How are they different? And why are they called 'electrons' if they're two different things?
Asked by The Quintessential Nonconformist - Wed Nov 12 02:16:54 2008 - - 3 Answers - 0 Comments

A. To be truthful... we don't really know!!!... Here's the story... we discovered a small particle... with a certain mass, and a certain spin, as well as a certain charge... and we called it an electron. It's commonly found to orbit the nucleus of atoms..etc... and if we heated the atom enough.. these 'electrons' would escape the atom... and fly around... etc... Now, in certain radioactive decays... called Beta decay... a very small particle appears to come out from the Nucleus of the atom. This small particle seems to have all the same characteristics as the 'electron' above... except that it came from the nucleus, rather than the outer atom. Scientists proper... called it a BETA particle. Now... if it looks like a duck,… [cont.]
Answered by U V - Wed Nov 12 05:36:58 2008

How are excited electrons related to street lights, advertising signs and lasers?
Q. I know the theory behind it - when an element is heated its electrons can absorb energy and the electron jumps to a higher energy level. When the electron jumps back it emits a photon of a certain colour. So, how is this related to street lights, advertising signs and lasers?
Asked by Mike - Sun Feb 22 04:46:03 2009 - - 1 Answers - 0 Comments

A. They are light emitting, which means they give off photons.
Answered by N - Sun Feb 22 05:33:13 2009

What would happen if electron valence shells could take 3 electrons?
Q. This is, in fact, a serious question, aimed at the theoreticians out there. I do not profess extensive knowlege here, but as I remember it, the valence shells that surround the nuclei of atoms come in different shapes and sizes, but can only contain 2 electrons. My question is, what would the the ramifications be, if they could contain 3? More potential energy? Less resistance to electron flow? I'm exploring the idea m'self, but would be interested in your thoughts on the matter.
Asked by topazopalstar - Wed Mar 3 21:25:53 2010 - - 2 Answers - 0 Comments

A. That would violate the pauli exclusion principle. So since physics would be violated who knows what would happen
Answered by xanzibar - Thu Mar 11 17:21:04 2010

What potential difference will cause the electrons to come to rest just as they reach the electrode?
Q. In a photoelectric effect experiment, shining ultraviolet light on a metal surface causes electrons to be ejected from the surface at a speed of 2.63 105 . The ejected electrons move toward an electrode located a few mm away. Applying a potential difference between the metal surface and the electrode causes the electrons to speed up or slow down.
Asked by tiffany - Wed Sep 2 18:06:42 2009 - - 2 Answers - 0 Comments

A. you probably know that charge (q) times electric potential (v) equals kinetic energy. you also know that kinetic energy =1/2xM(Velocity)^2. set these two equal to eachether and plug in the values for an electron. ev=ke=.5xM(V)^2 1.6x10^-19c times (V)=.5x9.1x10^-31x(2.6x10 ^5)^2 Potential dif=.192volts I hope this helps! please check my math for small errors. I do assume that this is ignoring relativistic effects?
Answered by RedO - Wed Sep 2 18:28:56 2009

How many electrons are in each energy level of Helium, Calcium, and Aluminum?
Q. Helium= 2 protons, 2 electrons, 2 neutrons Calcium= 20 protons, 20 electrons, 20 neutrons Aluminum= 13 protons, 13 electrons, 14 neutrons I just don't understand how to find out how many electrons are in each energy level.
Asked by mrsbrightside921 - Thu Sep 6 19:53:00 2007 - - 1 Answers - 0 Comments

A. Helium:2p 2n 2e Calcium:20p 20n 20e Aluminum: 13p 14n 13e Generally the n of electrons are equal to number of protons and are arranged in shells. A shell can contain up to 2n electrons; where n equals the shell number. Every shell has 5 subshells s p d f g ... Their energy levels are not ordered but they are mangled (see image). so He 1s2, Al 1s2+2s2+2p6+3s2+3p1, Ca 1s2+2s2+2p6+3s2+3p6+4s2. Al example says 1st shell s subshell has 2 electrons 2nd shell s subshell has 2 electrons 2ns shell p subshell has 6 electrons 3rd shell s subshell has 2 electrons 3rd shell p subshell has 1 electron Total : 13, so 2+8+3 for the 3 shells. Read my proposed source image for more, where you can find the energy levels of first n shells. Note that… [cont.]
Answered by justice - Sat Sep 8 02:08:04 2007

Why do electrons go into the 4s orbital before the 3d?
Q. Why do electrons go into the 4s orbital before the 3d? A. The 3d electrons screen the 4s, making it lower in energy. B. The polarizability of the atom makes 3d higher in energy than 4s. C. 3d electrons repel each other more than 4s electrons do. D. Because there are more d-orbitals than s-orbitals, they are higher in energy. E. The s-orbital is more penetrating than the d-orbital, making it closer to the nucleus and lower in energy.
Asked by * - Tue Dec 2 15:19:15 2008 - - 1 Answers - 0 Comments

A. E is the correct answer. A is completely wrong, since there aren't any electrons in the 3d to screen the 4s, since electrons go into the 4s first, and besides, screening will not act to lower an outer shell's energy. B and D are both wrong as they have nothing to do with the order electrons fill up in. C may be an effect, but it definitely doesn't play as big a role as E does. E is correct because an electron in the 4s orbital (before any 3d's are added) will spend a good proportion of its time near the nucleus, and hence be low in energy. This is to do with the shape of the 4s orbital (spherical). However, it is important to note that as soon as you add a 3d electron (this first happens with Scandium), then the energies of the 3d… [cont.]
Answered by jojodnb - Tue Dec 2 19:06:27 2008

How come some elements fit up to 8 electrons in their 3rd shell and others can fit up to 18?
Q. Eg. Calcium fits 8 electrons in the 3rd shell, 2 in 4th. Copper fits 18 electrons in 3rd shell, 1 in 4th. Also, why would nickel have 16 electrons in 3rd shell, 2 in 4th when it can have 18 electrons in 3rd shell and be stable?
Asked by sad07 - Wed Aug 12 00:12:19 2009 - - 1 Answers - 0 Comments

A. electrons go into the lowest energy level available to them. It just happens that after putting 8 electrons in the 3rd shell, it takes less energy to start putting electrons in the 4th shell. That's why calcium has only 8 electrons in its 3rd shell and 2 in its 4th shell. After putting 2 electrons in the 4th shell it takes less energy to put them in the 3rd shell again. So any atom that already has 2 4th shell electrons, like copper, will get more electrons in its 3rd shell. Nickel has 16 electrons in its 3rd shell and 2 in its 4th shell because that is the lowest energy configuration.
Answered by Mark - Wed Aug 12 00:20:15 2009

How do electrons provide power for electrical applicances? How does radiation operate?
Q. I know that eletricity is the flow of electrons. By radiation I mean feeling warm by being in the sun. By radiation, I mean how does sun (or any) light heat objects up.
Asked by Dan B - Mon Jun 30 13:42:41 2008 - - 3 Answers - 0 Comments

A. Radiation (like light from the sun) is actually an oscillating electric and magnetic field. These fields, will accelerate charged particles that come in their paths. Matter is all composed to charged particles, and so it gets accelerated in random directions when radiation hits it. Heat is actually a measure of the random motion of particles, so just particles them in random directions will heat them up.
Answered by Quasimodo - Thu Jul 3 10:47:27 2008

What's the difference between sharing electrons and taking them?
Q. My chem teacher shows the diagrams, but they look the same. If the electrons are being taken, then how is the atom staying? If the electrons are being shared, then how many electrons are being passed between the main and the secondary atoms? I don't mean the Lewis dot structures. I'm talking about how the atoms would look like in a real-life model.
Asked by Rose du fantome - Sat Feb 6 19:13:13 2010 - - 2 Answers - 0 Comments

A. The sharing of electrons is always done in pairs, two electrons one contributed from each bonding atom form a bond of the covalent type, they orbit around both atoms. More rarely the pair of bonding electrons is contributed by just one of the bonding atoms, this is called a coordinate bond and is considered a type of covalent bond. How many covalent bonds an atom can form depends on its outer electron shell and how many electrons it contains. In ionic bonds one atom removes totally one electron or more from another to the extend that these captured electrons orbit only around it.
Answered by greendawn - Sat Feb 6 19:27:44 2010

How many electrons will be stored in the capacitor? How much energy is stored in the capacitor?
Q. A man decides that he and his wife will design a 10^3 kg car that is powered by a capacitor. The capacitrance will be 10^3 F and it will be charged to 100 volts. A) How many electrons will be stored in the capacitor? B) How much energy is stored in the capacitor? Does this seem sufficient for an automobile?
Asked by Confused - Thu Feb 19 17:44:52 2009 - - 1 Answers - 0 Comments

A. Q = CV = 1000x100 = 1000 coulombs. 1 coulomb = 6.242e18 electrons your cap has 6.242e23 electrons (a) b) E = CV Energy in a cap E = (1000)(100) = 0.5e7 Joules = 5 MJ Gasoline stores about 40 MJ/liter. As a gas tank in an auto stores about 15 gal or 57 liters, that is over 2000 MJ. 2000 MJ is a lot more than 5 MJ, so no, not sufficient. .
Answered by billrussell42 - Thu Feb 19 17:55:08 2009

How does electrons transit from higher energy state to lower energy state?
Q. In the old quantum theory, we learnt that electrons undergo transition form the higher energy orbital to the lower energy orbital to emit photons with frequency proportionate to the energy gap. However, it is also sated that the time elapsed for the transition is 0 and the space in b/w the higher and lower orbital is forbidden. So without the passage of time and the physical crossing, how do we describe the crossing process. How do we explain this phenomenon in Quantum Physics?
Asked by Vacio - Fri Mar 13 06:54:23 2009 - - 5 Answers - 0 Comments

A. An electron is not a solid object with a defined location. We can only say of an electron's location that, given a defined area of space, there is a probability x of detecting the electron in that space during a period of time t. Even within the same orbital an electron can disappear at one location and instantaneously appear at another location. An electron can also jump from one atom to another without apparently crossing the space in-between, a phenomenon known as tunneling. Another strangeness is that the electron emits an electromagnetic wave, which by definition is extended in time, yet the process that causes the emission of the wave takes zero time. This is because there is uncertainty in the time at which the transition occurs.
Answered by charcinders - Fri Mar 13 07:13:45 2009

How many electrons have been removed from the sphere to raise it to this potential?
Q. An isolated aluminum sphere of radius 2.5 cm is at a potential of 400 V. How many electrons have been removed from the sphere to raise it to this potential?
Asked by Kephon S - Wed Sep 17 18:52:00 2008 - - 2 Answers - 1 Comments

A. Charge q = Vr/k, where k = 8.99E9 Nm^2/C^2. The number of electrons = q*6.2415E18.
Answered by kirchwey - Wed Sep 17 19:07:51 2008

What happens to the outer electrons during nuclear reaction?
Q. Bi on alpha decay gives Tl. What happens to the two electrons which were in Bi. Is Tl electrically neutral or having two electrons in excess.
Asked by Rosni N - Sat Dec 6 11:13:09 2008 - - 1 Answers - 0 Comments

A. There are two possibilities - 1) the electrons are repelled from the daughter atom and move through space 2) both electrons are captured by that alpha particle, after which it becomes helium. All terrestrial helium is made in this way, as alpha emitters in oil and natural gas-bearing strata decay and the alpha particles capture electrons, becoming helium atoms. The helium in natural gas is captured as a by-product of processing.
Answered by murky303 - Mon Dec 8 00:39:33 2008

How do atoms get their electrons back when they lose them to make electricity?
Q. If electricity is the movement of free electrons across a conductor. Does the conductor or element (such as copper) change since it's losing electrons? or does the atom create more electrons on it's own? I'm thinking that the electricity cycles in a loop which means that the electrons are constantly returning to it's original atom. But when you get arc's or when a power line is cut and the loop is severed, how do the atoms get their electrons back?
Asked by Top Gun - Sun Oct 7 23:47:28 2007 - - 3 Answers - 0 Comments

A. A metal is considered as atoms in a "sea" of electrons that are lightly held in the outermost shells, 2 per shell in the case of copper. Think of a copper wire hooked in a circuit. As electrons move out of one end of the wire, they come in through the other end, sent by the generator. Sort of like a long freight train, the first car moves past a particular spot long before the last car does, so you don't have to think about sending an individual electron from the generator to the appliance, just start them moving.
Answered by Howard H - Sun Oct 7 23:57:13 2007

In terms of electrons, describe the difference between the formation of the covalent bond in Cl2 and the ionic?
Q. Please help i cant figure it out no matter how hard i try so please help me and thanks. In terms of electrons, describe the difference between the formation of the covalent bond in Cl2 and the ionic bond in NaCl? there is the question again.
Asked by J appleseed - Mon Nov 23 13:17:07 2009 - - 2 Answers - 0 Comments

A. Electrons, specifically the valence electrons (electrons in the outer orbital) are the particles that determine reactivity. In other words, the valence electrons are the things that are doing stuff in a bond. In a covalent bond (such as Cl2), the valence electrons are shared between the atoms. Think of the valence electrons as a blanket that goes over the nucleus. When atoms go into a covalent bond, the "blankets" are shared between all the nuclei. So, the electrons stop whirling around just their respective nuclei, and make their trek around the whole clump of nuclei. In an ionic bond (such as NaCl), electrons are taken from the valence level of one atom, and pulled into the valence level of the other atom. So the first atom has… [cont.]
Answered by CDH - Mon Nov 23 13:46:11 2009

If three electrons are available to fill three empty 2p atomic orbitals, how will the electrons be distributed?
Q. If three electrons are available to fill three empty 2p atomic orbitals, how will the electrons be distributed in the three orbitals? a. one electron in each orbital b. two electrons in one orbital, one in another, none in the third c. three in one orbital, none in the other two d. Three electrons cannot fill three empty 2p atomic orbitals.
Asked by Charles - Wed Oct 15 11:11:43 2008 - - 1 Answers - 0 Comments

A. one electron in each orbital
Answered by Dr.A - Wed Oct 15 14:54:52 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

What happens to the electrons in a metallic bond?
Q. I need to know exactly what happens to the electrons.
Asked by Ty Y - Sat Aug 4 14:46:22 2007 - - 3 Answers - 0 Comments

A. Yes they form a sea. Ussualy electrons are arranged in different levels in an atom. However, these are free to move from atom to atom. This is the reason metal is bendable. The electrons keep the bond together. Vote me best answer =)
Answered by Last Second Savior - Sat Aug 4 15:02:35 2007