How do metals on the periodic table tend to achieve the octet rule?

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22-10-2014
Chemistry

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How do metals on the periodic table tend to achieve the octet rule?

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ellebell235 ellebell235 · Answer 1 · 2014-10-22T04:20:38+02:00

By either gaining or losing an electron.

So for the halogens (group 17) they have 7 valence electrons so they need one more to have a full outer shell. They will form a bond with another element that can give an electron. Typically a halogen will bond with an alkaline metal because they have 1 valence electron in their outer shells. This sharing of electrons (covalent bond) satisfies both elements, giving them full outer shells.