2006-12-01 21:35:35 · 10 answers · asked by ishisgreat 1 in Science & Mathematics ➔ Physics
The electrons which are in outer orbits are attracted with comparatively less force. Therefore its velocity is more. Hence the Energy it posses in the form of kinetic energy is more.
2006-12-02 02:44:31 · answer #1 · answered by Adithya M 2 · 0⤊ 1⤋
The nucleus attracts electron.
Consider an electron in an orbit.
If the electron looses some energy, then it is attracted by the nucleus and goes to the inner orbit. It is not emitted out.
On the other hand, if we give energy to it, it comes out of the orbit.
Thus higher the energy it is away from the nucleus. Lesser is the energy it is toward the nucleus.
2006-12-01 23:31:34 · answer #2 · answered by Pearlsawme 7 · 0⤊ 0⤋
The energy of attraction is Negative .
The nucleus has an electric charge +Ze (Z atomic number)
The electron has an electric charge of -e
The energy of the attraction is E = - k Z e^2/R
where R is the distance nucleus - electron
The electron which are far from the nucleus (outer shells) have
an energy less in absolute value but as the energy is negative, their energy is higher
2006-12-01 21:47:37 · answer #3 · answered by maussy 7 · 0⤊ 0⤋
Energy is directly related to stability. If an electron have positive energy(atleast zero) then it will come out of the atom.
The electrons in the orbit of an atom have negative energy(say -E). To remove it from the atom, you need to supply it an energy +E. The farther the electron is from the nucleus, the less energy you will have to provide it to make it free(because the nucleus will pull it with less force). This means that the farther electron is having less negative energy, and less negative is greater than more negative.
2006-12-02 00:31:27 · answer #4 · answered by Anonymous · 0⤊ 1⤋
energy of electrons at infinite distance from the nucleus is taken to be zero. as an electron moves towards the nucleus, some work is done by it against the electrostatic forces of attraction. hence it looses some energy and its energy is less near nucleus than away from it.
2006-12-04 17:06:56 · answer #5 · answered by Amandeep 1 · 0⤊ 0⤋
Think about earth. A stone at a greater hieght has more potential energy. This is beacuse more work is required to take the stone from the surface of earth to that height.
Similar is the case of electron which is farther from nucleus.
2006-12-02 01:40:03 · answer #6 · answered by mohan k 1 · 2⤊ 0⤋
well...the further the electron is from the nucleus, the more free it is. the "freest" electron, at distance infinity from the nucleus has energy 0. the closer u get to the nucleus, the more is the MAGNITUDE of the energy but since nucleus-electron is attractive system, energy is negative..hence further u go, energy increases(-2 is GREATER than -3)...and the maximum energy an electron can have is 0 when it is at infinity distance
:)
2006-12-01 21:40:54 · answer #7 · answered by netsavvy_sashi 2 · 2⤊ 1⤋
This is not true. The energy needed to extract an electron from an atom increase as we go to inner orbits.This is called the bonding energy. As example for silicium
Si + E1 => Si+ + e-
Si+ + E2 => Si++ + e-
We have E2 > E1
2006-12-01 21:43:50 · answer #8 · answered by Joseph Binette 3 · 1⤊ 1⤋
Because, if they had less energy the nucleus would pull them in closer. So, if they are farther out, you know they have more energy.
2006-12-01 21:39:13 · answer #9 · answered by martin h 6 · 1⤊ 2⤋
Because they are moving at close to light speed, therefore it will naturally have more energy.... If it was zero kelvin out, then it would stop altogether.
2006-12-01 21:37:13 · answer #10 · answered by Cold Fart 6 · 0⤊ 3⤋