Answers

2015-10-09T17:42:26+08:00
Exactly non metals form covalent bond( atoms share electrons to attain stability) but there is a possibility that metals together with non metals can form polar covalent bond (unequal sharing of electrons such as aluminum chloride,thus non metals and metals formed polar covalent bond) . But it's very impossible for non metal and metal to form an equal sharing of electrons or non polar covalent bond.
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