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Four elements A, B, C and D have atomic ...

Four elements A, B, C and D have atomic numbers 12, 13, 14 and 15 respectively. Answer the following questions giving reasons:
(a) What is the number of valence electrons and valency of D? (b) Which of them will have largest atomic radii? (c ) Which of these elements will form the most basic oxide?

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Knowledge Check

  • The elements A, B, C and D have atomic numbers 4,12, 17 and 19 respectively. Which pair of elements belong to the same period?

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