1.

Correct order of extent of overlapping is :-

Answer»

`2s-2s GT 2p-2p gt 2s-2p`
`1s-1s gt 2p-2p gt 2s-2p`
`1s-1s LT 2s-2s lt 3s-3s`
`3s-3s gt 3s-3pgt 3p-3p`

Solution :EXTENT of overlapping `porp`directional character
Extent of overlapping `PROP (1)/("size of orbital")`


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