Atomic Structure Question 44

Question: The radius of electron in the first excited state of hydrogen atom is

Options:

A) $ a_0 $

B) $ 4a_0 $

C) $ 2a_0 $

D) $ 8a_0 $

Show Answer

Answer:

Correct Answer: B

Solution:

$ r\propto n^{2} $ (excited state $ n=2 $ ) $ r=4a_0 $



NCERT Chapter Video Solution

Dual Pane