Why electro negativity decreases down the group in hindi?
Answers
Electronegativity is define as the tendency of an atom to attract the shared paired of electrons towards itself
As we move down the group.... Atomic radius increase due to increase in the no. Of shell thus nuclear charge decrease which decrease the tendency of an atom to attract the shared pair of electrons i. e. Electronegativity
Periodic table me jo elements hota he unka ek ek nucleus hota he...uss nucleus ka attraction force hota he... periodic table ke niche jate jate electrons ka number badta jata he...wese hi usska no. of outermost shell badta jata he - down the grp me...no. of shell badta badte nucleus ka attract karneka power kam hota jaega... issliye wo outermost shell me jitne electrons honge unko gawata jaega... abhi hamein pata he ki element jitna electrons donate karega(ya chod dega) uska electropositive nature badhega ... so jese hi uska electropositive nature badhega wese hi uska electronegative nature kam hota jaega...issliye periodic table ke jitna niche jao uska electronegative nature
kam hota jaega... samjhe