Atomic Structure Result Question 18-1
18. The number of radial nodes in $3 s$ and $2 p$ respectively are
(2005,1 M)
(a) 2 and 0
(b) 0 and 2
(c) 1 and 2
(d) 2 and 1
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Answer:
Correct Answer: 18. ( a )
Solution:
- The number of radial nodes is given by expression $(n-l-1)$.
For $3 s$, number of nodes $=3-0-1=2$
For $2 p$, number of nodes $=2-1-1=0$