Question

For He + ion, the correct order of energy of atomic orbitals is​

Answer 1

Answer:

1s lt 2s lt 2p lt 3s lt 3p lt 4s lt 3d lt 3p lt 5s lt 4d lt 5p lt 6s lt 4f lt 5d lt 6p lt 7s.

Explanation:

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Answer 2

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Correct order of energy of atomic orbitals is:

"1s lt 2s lt 2p lt 3s lt 3p lt 4s lt 3d lt 3p lt 5s lt 4d lt 5p lt 6s lt 4f lt 5d lt 6p lt 7s."

Explanation of energy of atomic orbitals:

energies of orbitals can be compared using n+l rule. where 'n' is the principal quantum and 'l' is the azimuthal quantum number.

For same value of n+l, higher n will have higher energy.

(n+l) for 5s = 5

(n+l) for  7s= 7

(n+l) for  5d = 7

(n+l) for  5f =8

Correct order of energies : 5s<5d<7s<5f

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