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

Acceleration, suppose you are running and want to stop at once. surely you ...

suppose you are running and want to stop at once. surely you will have to produce negative acceleration in your speed. can you tell from where does the necessary force come ?

Experiment vector and addition, how would the results change if the angle o...

how would the results change if the angle of the third load in second experiment increased ? state the differences

Evaluate the eigen frequencies and explain the normal modes, A mass M moves...

A mass M moves horizontally along a smooth rail. A pendulum is hung from M with a weightless rod and mass  m  at its end. Find the eigen frequencies and describe the normal modes

Physics of eyes and vision, The sense of vision consist of three major comp...

The sense of vision consist of three major components : The eyes that focus an image from  the outside world on the light sensitive retina The system of millions of nerve

Dimension, the force of a capillarity in plant is given by surface tension ...

the force of a capillarity in plant is given by surface tension =density*r*g*h/2.is the equation correct or not

Breakdown voltage, It is a parameter of an insulator that defInes the maxim...

It is a parameter of an insulator that defInes the maximum voltage difference that can be applied across the material before the insulator collapse and conducts.

Determine the net force, Q. While rummaging in her backpack for her cell p...

Q. While rummaging in her backpack for her cell phone, Sally's Mini-Cooper rear ends Joey's Suburban. Sally's car is totaled while the suburban is fine. If Sally's car hit the sub

Explain the natural frequencies and resonance, Explain the Natural Frequenc...

Explain the Natural Frequencies and Resonance Standing waves occur when the waves, like those in a vibrating piece of rope, are repeating so that there are places on the rope t

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