ShanelleW01 ShanelleW01

21-12-2016
Chemistry

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What is the general trend in atomic size within a group? Within a period?

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premedchemist premedchemist

21-12-2016

That's a great question! Atomic size depends on how much the nucleus pulls the electrons in. The more protons there are, the more the electrons are pulled in. Therefore, atom size increases from top to bottom, and decreases from left to right.

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