number of Valence electrons in nation are
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Carbon has four valence electrons and here a valence of four.
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The number of valence electrons.
Periodic table group Valence electrons
Group 15 (V) (pnictogens or nitrogen group) 5
Group 16 (VI) (chalcogens or oxygen group) 6
Group 17 (VII) (halogens) 7
Group 18 (VIII or 0) (noble gases) except helium 8
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