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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