balance electron define
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In an atom, electrons are present in the shell. Valence electrons are the electrons which are present in the outermost shell of an atom.
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In an atom, electrons are present in the shell. Valence electrons are the electrons which are present in the outermost shell of an atom.
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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. The presence of valence electrons can determine the element's chemical properties, such as its valence—whether it may bond with other elements and, if so, how readily and with how many. For a main group element, a valence electron can exist only in the outermost electron shell; in a transition metal, a valence electron can also be in an inner shell
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