Question

5. Arrange the following in the order of decreasing
ionisation energy
s-electron, p-electron, d-electron, f-electron, of the
same shell.
​

Answer 1

Answer:

Decreasing order of ionisation energy is f >d> p>s.

Explanation:

As  we go close to the nucleus we need higher energy to remove the electron because of nuclear charge. so first will be s-electron than p-electron and than d-electron in the order of decreasing IE.

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