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How many nodes are present in 3s orbitals ??A. 3B. 2C. 1D. 0

How many nodes are present in 3s orbitals ??A. 3B. 2C. 1D. 0

Grade:11

1 Answers

Srikant Kumar
19 Points
4 years ago
While drawing probability density with distance of electrons graph for 3s,the probability is maximum near the nucleus, decreases to zero,increases again,decreases to zero again,again increases and then decreases as the distance from the nucleus increases.Thus 3s has 2 nodes.Or according to formula (n-l-1) n=3,l=0 . Therefore 3s has 2 nodes.

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