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Question

# The number of radial nodes and angular nodes for d-orbital can be represented as:

A
(n2) radial nodes +1 angular node=(n1) total nodes
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B
(n1) radial nodes +1 angular node=(n1) total nodes
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C
(n3) radial nodes +2 angular nodes=(nl1) total nodes
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D
(n3) radial nodes +2 angular nodes=(n1) total nodes
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Solution

## The correct option is D (n−3) radial nodes +2 angular nodes=(n−1) total nodesNumber of radial nodes =n−l−1 Number of angular nodes =l ∴Total number of nodes =n−l−1+l=n−1 For d-orbital, l=2, thus number of radial nodes =n−2−1=n−3 and number of angular nodes =l=2 Total nodes =n−1

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