Among the following elements, which one ...

Among the following elements, which one has the lowest value of first ionization energy ?

A

Pb

B

Sn

C

Si

D

C

Verified by Experts

The correct Answer is:

B

IE decraeses as CgtSigtGegtSngtPb IE of SnltPb due to poor sheilding effect of d and f electrons in Pb,

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