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MHTCET 23 Apr 2025 Shift 2 Paper

Question : 87 of 150

Marks: +1, -0

What is the number of node in 2 s orbital?

Solution:

Concept:

Total number of nodes in an orbital is given by

n - 1

Explanation:

For a

2s

orbital, the principal quantum number is

n = 2

Total nodes

= n - 1 = 2 - 1 = 1

The

2s

orbital has only one radial node, which is a spherical region where the probability of finding the electron is nearly zero.

Answer:

The number of nodes in the

2s

orbital is

1

Correct option: B. 1

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