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 $