Question

Among the following, the element with greater value of screening effect is
a) Li
b) Na
c) Cs
d) K​

Answer 1

Answer:

Na - Sodium

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Explanation:

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Answer 2

Answer:

C.Cs

Explanation:

1) In the periodic table, from top to bottom. The screening effect of an element increases.

2) More no. of inner electrons of an element greater the valence of screening effect Zeff

3) Element with the greater Z value (Cs), has more no. of inner electrons and Zeff is more.