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In group 1 (alkali metals), sodium is more reactive than lithium, or lithium is less reactive than sodium. Give reason. |
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Answer» Solution :(i) The valence shell of SODIUM (2, 8, 1) is M-shell (n = 3). Its radius is LARGE. It is easy to remove its valence electron. Therefore, sodium is more reactive than LITHIUM. (ii) The valence shell of lithium (2, 1) is L-shell (n = 2). Its radius is SMALL and the removal of valence electron is difficult as compared to sodium. Therefore, lithium is less reactive than sodium. |
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