An element "X belongs to 3 period and group 16 of the Modem Periodic Table. (a) Determine the number of valence electrons and the valency of 'X’ (b) Molecular formula of the compound when 'X' reacts with hydrogen and write its electron dot structure, (c) Name the element 'X' and state whether it is metallic or non-metallic.
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a) valence electrons = 6
valency = 2
c) X is Sulphur and it is non- metal. It lies on the right side of the modern periodic table.
valency = 2
c) X is Sulphur and it is non- metal. It lies on the right side of the modern periodic table.
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