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2015-09-04T19:35:40+08:00

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Metals have less than 4 valence electron.

--Mizu
9 3 9
2015-09-05T16:56:54+08:00
Also non-metals like::

hydrogen- only 1 val. electron
helium- only 2 val. electrons

yup metals have less than 4 val. electrons but the leftmost side are the ones likely of having less than 4 val. electrons

anyway.. u can determine it by looking at the family no.


11 4 11