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ongl pt2 a) What are valence electrons ? Where are valence electrons situated in an atom ? |
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Answer» In chemistry, a valence electron is an outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a shared pair. They are situated at the outermost shell. |
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