The electronic configured of an element ' X' is 2,8,6 .To which group and period table does ' X' belong . State it valency and justify your ans in each case.
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Group:6 no of electron in the outermost cell
Period:3 no of cell
Valency:2 need two electrons two get stable
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Answer:
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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