The force of attraction between nucleus and electrons increases upon periods because
Nuclear Charge increases
distance remains constant
shielding effect constant
All of these
As we learnt
Factor affecting the magnitude of screening effect -
depends on the number of electrons in the inner shells.The greater the number of inner electrons large is the screening effect and hence larger is the magnitude of
and hence the magnitude of Zeff will decrease.
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Force of attraction between nucleus and electrons increases across periods because of nuclear charge increase, constant shielding effect & distance remains constant.