Question

Modern peroidic table me left se right jane per atomic radious kam hoti jati jabki nuclear me proton avam parmanu me electrono ki sankhya saman roup se bathi hai.Why?

Answer 1

hey mate ! here is your ans...

its because of the increasing electronagative character.

on moving from left to right the nuclear charge increases and atomic radius decreases

hope this will help u

Answer 2

bcoz as we left to right effective nuclear charge increase due to which electron are attracted by nucleus more strongly in comparison of their shielding effect