2.Periodic Classification of Elements

1. Rearrange the columns 2 and 3 so as to match with the column 1.   Ans. 2. Choose the correct option and rewrite the statement.   a. The number of electrons in the outermost shell of alkali metals is …………..   (i) 1       (ii) 2       (iii) 3      (iv) 7   Ans. The number […]

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