Question

Four elements P, Q, Rand have atomic numbers 12, 13, 14 _and 15 respectively.; Answer the following questions giving reasons:; (i)What is the valency of Q?; (ii)Classify these elements as metals and non-metals.; (iii)Which of these elements will form the most basic oxide?(All India - 2013)

Answer 1

Answer:

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Explanation:

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