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Electronic Devices and Circuits - Engineering

Q1:

When a large number of atoms are brought together to form a crystal

A the energy levels of inner shell electrons are affected appreciably by the presence of other neighbouring atoms.

B The energy levels of outer shell electrons are affected appreciably by the presence of other neighbouring atoms.

C the energy levels of both inner and outer shell electrons are affected appreciably by the presence of other neighbouring atoms.

D none of the above.

ANS:B - The energy levels of outer shell electrons are affected appreciably by the presence of other neighbouring atoms.

Inner shell electrons are tightly bound to the nucleus. Their energy levels cannot be affected by presence of other atoms.