Which element reacts with oxygen to form ionic bonds?

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Grade: Education Subject: chemistry
Which element reacts with oxygen to form ionic bonds?
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Best Answer
(148)
Most metals actually. 
Pick one. For example K forms K2O. MgO, Fe2O3, etc...
Metals will lose electrons, oxygen will gain to form the bond
(103)
Metals in general would actually have the need to form an ionic bond with oxygen to form a full octet.