The order of screening effect of electrons of s,p,d and f orbitals of a given shell of an atom on its outer shell electrons is:
A
s>p>d>f
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B
f>d>p>s
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C
p>f>d>s
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D
f>p>s>d
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Solution
The correct option is As>p>d>f For the same shell, screening effect decreases in the order: s>p>d>f. Thus, for n=4, 4s orbital has maximum screening effect and 4f orbital has the lowest screening effect.