Question

Assertion : The quantized energy of an electron is largely determined by its principal quantum number.

Reason : The principal quantum number, n is a measure of the most probable distance of finding the electron around lite nucleus.

(a) Both A and R are true and R is the correct explanation of A  

(b) Both A and R are true but R is not correct explanation of A  

(c) A is true but R is false  

(d) A and R are false

Answer 1

Correct option (a) Both A and R are true and R is the correct explanation of A  

Explanation:

where n = principal quantum number which has only integral value, it follows that total energy is quantized.