In a given shell- the order of screening effect is s- gt-p- gt-d- gt-f-f- gt-d- gt-p- gt-s-p-d-s-f-d- gt-f- gt-s- gt-p-

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Features of Group and Periods

In a given sh...

Question

In a given shell, the order of screening effect is

$s > p > d > f$

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$f > d > p > s$

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$p < d < s < f$

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$d > f > s > p$

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Solution

The correct option is A
$s > p > d > f$

Screening effect, also known as the shielding effect, reduces the effect of the nucleus on the outer electrons i.e. inner electrons acts as a shield and reduce the electrostatic interaction between the nucleus and outermost electrons.

The correct order of orbitals in a given shell for the screening effect is $s > p > d > f$ , i.e., s-orbital has the highest shielding effect whereas f-orbital has the least shielding effect.

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