electronic configuration of an element X is 2 8 6 to which group and period of modern periodic table does X belong state its valency and justify your answer in each case.
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This element is SULPHUR
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1 . Since ‘X’ has three energy shells and period number of an element is equal to the number of energy shells, X belongs to 3rd period.
2 . X has 6 valence electrons it belongs to group 16.
3. Valency will be 2. To acquire noble gas configuration it will gain 2 electrons.
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