1.

Correct energy value order is

Answer»

`NS NP ND(n-1)F`
`ns np(n-1)d (n-2)f`
`ns np(n-1)d (n-1)f`
`ns(n-1)dn(n-1)f`

SOLUTION :The higher the `(n+1)` value the higher is energy associated with the orbitals.


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