Assertion (A): In the periodic table of chemical elements, electron affinity is always found to increase from top to bottom in a group. Reason (R): In a group, the atomic radial generally increase from top to bottom.
Options
(a)Both A and R are individually true and R is the correct explanation of A
(b)Both A and R are individually true but R is NOT the correct explanation of A
(c)A is true but R is false
(d)A is false but R is true
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