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Slater's rule is used to calculare the...

Slater's rule is used to calculare the shielding constant `(sigma)` in multielectron systemnm and the electronic configuration the element in the following order and groupings :
`(1s),(2s,2p),(3s,3p),(4s,4p),(4d),(4f),(5s,5p), etc.`
in which of the following element outer shell s electrons and penultimate shell d electron does not experience same Z effective value ?

A

La

B

Y

C

Sc

D

Zn

Text Solution

Verified by Experts

The correct Answer is:
d
Sc ,Y ,La have same `Z_("eff")` =3.0 ns and (n-1) `de^(-)`
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