How does the periodic trend of atomic radius relate to the addition of electrons?

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Chemistry

Denisse Riddle

9 May, 22:25

How does the periodic trend of atomic radius relate to the addition of electrons?

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Antonio Delgado · Answer 1

The atomic radius actually decreases as you move from left to right in a period (row) of the periodic table ... The added protons in the nucleus of an atom will pull the electron cloud more tightly inward and shrink the size of the electron cloud which means you have a smaller atomic radius.