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For the energy levels in atom, which one...

For the energy levels in atom, which one of the following statement (s) is (are) correct?

A

For Ca (Z = 20) energy of the 4s-subshell is less than 3d-subshell

B

For Zn (Z = 30) energy of 3d-subshell is less than 4s-subshell

C

For Ca (Z = 20) energy of the 4s-subshell is more than 3d-subshell

D

For Zn (Z = 30) energy of 3d-subshell is more than 4s-subshell

Text Solution

Verified by Experts

The correct Answer is:
A, B
The statements (C ) and (D) are against the facts.
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