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Chemistry 5 Online
OpenStudy (18jonea):

How does magnesium obey the octet rule when reacting to form compounds? It does not change its number of electrons. It gains electrons. It gives up electrons. Magnesium does not obey the octet rule. @zale101

OpenStudy (18jonea):

@thomaster

OpenStudy (zale101):

What elements obeys the octet rule?

OpenStudy (zale101):

Can you name them? :)

OpenStudy (18jonea):

no sorry

OpenStudy (zale101):

Only CNOF obeys the octet. Carbon, Nitrogen, Oxygen, and Fluorine.

OpenStudy (18jonea):

so then magnesium doesnt

OpenStudy (zale101):

Yes.

OpenStudy (18jonea):

so the answer would be d

OpenStudy (18jonea):

?

OpenStudy (anonymous):

I would say the answer is C. Octect rule consists in an atom losing, gaining or sharing electrons so that at the end its outermost shell has 8 electrons. The outermost shell of Mg has 2 electrons. In compounds, it loses two compounds to the other reagent, making it have 8 electrons in its outermost shell, that is, it obeyed the octect rule.

OpenStudy (ramzy197):

i think the answer is C because magnesium is usually mg+2 meaning it gives up electrons to have that complete outer shell

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