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(i) State the number of elements in period 1, period 2, and period 3 of the periodic table.(ii) Name the elements in period 1.(iii) What happens to the atomic size of elements on moving from left to right in a period? |
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Answer» (i) State the number of elements in period 1, period 2, and period 3 of the periodic table. (ii) Name the elements in period 1. (iii) What happens to the atomic size of elements on moving from left to right in a period? |
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