Atomic Structure - Result Question 73

####49. The state S1 is

(2010)

(a) 1s

(b) 2s

(c) 2p

(d) 3s

Show Answer

Answer:

Correct Answer: 49. (c)

Solution:

  1. S1 is spherically symmetrical state, i.e. it correspond to a s-orbital. Also, it has one radial node.

Number of radial nodes =n−l−l

⇒n−0−1=1 ⇒n=2 i.e. S1=2s-orbital. 

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