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The correct enegry value order is...

The correct enegry value order is

A

ns, np, nd, (n-1) f

B

ns, np, (n-1), (n-2)f

C

ns, np, (n-1)d, (n-1)f

D

ns,(n-1)d, np, (n-2)f

Text Solution

Verified by Experts

The correct Answer is:
D

According to Aufbau principle the correct order of energies (in the increasing order) is `ns, (n-1) d, n p, (n-2)f`
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DINESH PUBLICATION-ATOMIC STRUCTURE-Revision Questions
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