Question

What is a sub penultimate shell?

Answer 1

Here is your answer dude ☺️☺️↙️↙️✔️✔️


The shell which is before the valenceshell is called penultimate shell. If 'n' is the valence shell then (n-1) is thepenultimate shell. Transition elements contain unpaired electrons in sub penultimate shells.

If ‘n’ is the valence shell then (n-1) is the penultimate shell & (n-2) is the anti-penultimate shell.

Transition elements contain unpaired electrons in penultimate d-subshells.


Hope this helps you dude ✌️✌️✔️✔️✔️

Answer 2

The last shell or the outer most shell from the nucleus is called the valence shell. If 'n' is the valence shell then(n-1) is the penultimate shell and (n-2) is the anti-penultimate shell.Transition elements contain unpaired electrons in penultimate d-subshells.


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