kevinjr11 kevinjr11

05-06-2017
Chemistry

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Looking at the periodic table, which of these elements has the smallest atomic radius?

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fatouramjaun fatouramjaun

05-06-2017

Helium
Remember: electron filling of atomic shell ...
The element which have electron in the lowest quantum shell will have the smallest atomic radius\

He:1s1 (Helium)

H:1s2 (hydrogen)

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