THE energy band structure of a solid determines whether it is a conductor , an insulator or a semiconductor .  A free …

Valence electrons :- The electrons which revolve in the outermost orbit of an atom are called valance electron . most…

When you are reading and learning about  atomic structure , you should take good notes. Draw pictures and color code …

The electrons which resolve in the outer most orbit of an atom are called valence electron . Most of the atoms of diff…