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Grade: 11

                        

please tell thatHow shielding effect varies across periodic table? pls answer quickly.............

4 years ago

Answers : (1)

Umakant biswal
5359 Points
							
@ shivesh 
what u need to understand is that shielding or screening effect means when the shell between the nucleaus and the valence electrons are increased , in that case nucleaus is not able to pull the valence electron strongly , so, the nuclear force in decreasing , that is what shielding effect means . 
NOW , as far as periodic table is concerned , then as you move down the group then a new shell will be added thus sheilding effect will increase . as we move down the group . 
the oppsite thing thing happens as we move in a period beacuse their instead of a new shell or orbital , the electrons are added in the same shell . 
HOPE IT CLEARS YOUR DOUBT 
ALL THE BEST ..
4 years ago
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