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Bond Order and Enthalpy

In an atom, t...

Question

In an atom, the differentiating electron enters into 7s sub shell. The number of incomplete shells in the atom could be:

A

1

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B

2

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C

3

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D

0

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Solution

The correct option is C $3$
According to Aufbau's Principle, when the differentiating electron enters into the 7s subshell, there will be three incomplete shells (7, 6, 5).

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