how does atomic radius change while going from left to right within aperiod ? why?
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atomic radius decreases when we move left to right in a period because no. of protons and neutrons increases alongwith electrons which hold them tightly and thus reducing the atomic radius and atomic size too.
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Pratishtha2003:
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Size will decrease. Bcz electrostatic force of attraction between them increase due to which atom small in size
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