Electron distribution, Physics

Assignment Help:

Electron distribution:

The atoms of a solid have electrons rotating in orbits around the positive nucleus. This is true of gases and liquids as well. These orbiting electrons exist in energy shells or levels.

The potential energy (energy of position) increases with distance out from the nucleus. The outermost occupied energy level is called the valence shell. This is a higher energy level than the energy levels of electrons in the other shells since the electrons are rotating further from the nucleus.

The electrons in the valence shell can most easily pass from one atom to another and thus constitute an electric current. Furthermore, the valence electrons are the ones that go into chemical reactions, or combinations, with other atoms.

When an outside influence such as an electric field or heat is applied, a valence electron may acquire sufficient energy to jump through a forbidden (energy) gap and on into the conductor band where it is free of any influence of the positive nucleus and becomes a carrier of electricity, ready to take the place of another electron that has just left its own atom, in the same manner.

769_Electron distribution.png


Related Discussions:- Electron distribution

Are side emitting fibers with reflecting core more luminous, Are the side e...

Are the side emitting fibers with reflecting core more luminous? To answer this honestly is very much as trying to find out the sex of the angels. When a side emitting light gu

Illustrate double-beam oscilloscope, For the double-beam oscilloscope displ...

For the double-beam oscilloscope displays shown in Figure, determine (a) their frequency (b) their r.m.s. values (c) their phase difference. The 'time/cm' switch is on 10

Magnitude of k.e. in an orbit, Magnitude of K.E. in an orbit is equal to: ...

Magnitude of K.E. in an orbit is equal to: (1)Half of the potential energy     (2)Twice of the potential energy       (3)One fourth of the potential energy   (4 ) None

Acceleration, when an object is dropped, what is its acceleration at the mo...

when an object is dropped, what is its acceleration at the moment of release? Explain with reasoning.

Electromagnetism, Electromagnetism: If a straight wire carrying a ...

Electromagnetism: If a straight wire carrying a current is formed into a circular loop, the magnetic field is as shown. The field may be deduced by taking elements of the

Internal resistance of circuit, Internal Resistance of Circuit: As ment...

Internal Resistance of Circuit: As mentioned earlier in the section on batteries, every source of electricity, such as a cell or generator has resistance to current flow called

Angle between plane of polarization and plane of vibration, What is the ang...

What is the angle between plane of polarization and plane of vibration?

Magnometer, sir, what are the apparatus required for the magnometer experi...

sir, what are the apparatus required for the magnometer experiment and how to do it.TO finnd the magnetic materials. wsihing an speedy reply

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd