Question

Assertion (A): Energy of 3p less
than that of 3d
Reason (R): Energy of an orbital is calculated by its n+l value​

Answer 1

Explanation:

Yes, Energy is directly proportional to the (n+l) level.

For 3p, n=3

l= 1

therefore , n+l = 3+1

= 4.

For 3d, n=3

l=2

therefore , n+l = 3+2

=5.

Therefore 3p orbital has the less energy.

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