Chemistry, asked by Kopilachaulagain, 11 months ago

Why do atomic radii decrease across a period and increase in a group with the increase of atomic number

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Answered by Friendship11

This is caused by the increase in the number of protons and electrons across a period. One proton has a greater effect than one electron; thus, electrons are pulled towards the nucleus, resulting in a smaller radius. ... This is caused by electron shielding.

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