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Choose from the following. 6C, 8O, 10Ne, 11Na, 14Si (i) Elements that should be in the same period.

Choose from the following. 6C, 8O, 10Ne, 11Na, 14Si (i) Elements that should be in the same period. (ii) Elements that should be in the same group.

Answer - (i) C, O, Ne should be in the same period as these elements contain same number of shells. Similarly, Na and Si should be in the same period.

(ii) C and Si should be in the same group as these elements have same number of valence electrons

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