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ongl pt2 a) What are valence electrons ? Where are valence electrons situated in an atom ?

Answer» <p>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.</p><p>They are situated at the outermost shell.</p>


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