What is the relation between the energy of an electron and the principle Quantum, number ?

According to Bohr's theory the relation between the period of revolution of electron and principle quantum number is

What is the relation between the number of electrons and the holes in an intrinsic semiconductor?

Write note on 'Principle Quantum number.

How is the radius of an electronic orbit related to principle quantum number?

Assertion : The energy of an electron is mainly determined by principal quantum number. Reason : The principal quantum number is the measure of the most probable distance of finding the electron around the nucleus.

What is the energy possessed by an electron whose principal quantum number is infinite ?

What are the values of principle quantum number 'n' ?

What is the relation between number of holes and number of electrons in intrinsic semiconductor.