An element belongs to group III. What
is it's valeney? 'Writé the molecular
formula of the compound when it
reacts with element Y of group VA
and Z of group VIIA.
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Determine the valence electrons and the valency of 'X'. (b) Molecular formula of the compound formed when 'X' reacts with an element 'Y' (atomic number ... (a) Since the element 'X' belongs to 3rd period and group 13, ic is alluminium (Al). ... (b) The element 'Y' (Z = 8) is oxygen (2, 6). Its valency is 2.
Explanation:
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