Question
The number of radial nodes of $$3s$$ and $$2p$$ orbitals are respectively
A.
2, 0
B.
0, 2
C.
1, 2
D.
2, 1
Answer :
2, 0
Solution :
TIPS/Formulae :
Number of radial nodes $$ = \left( {n - l - 1} \right)$$
$$\eqalign{
& {\text{For}}\,3s\,:\,\,n = 3,\,\,l = 0\left( {{\text{Number}}\,{\text{of}}\,{\text{radial}}\,{\text{node}} = 2} \right) \cr
& {\text{For}}\,2p\,:\,\,n = 2,\,\,l = 1\left( {{\text{Number}}\,{\text{of}}\,{\text{redial}}\,{\text{node}} = 0} \right) \cr} $$