why is not possible to get affixed position to hydrogen in meendelves periodic table??
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It is so because hydrogen has 1 valence electron in its outermost shell.so according to modern periodic table, hydrogen can be arranged in halogen family i.e. group no. ... Hence, it was placed in IA group VI B group and could not be given a fixed position in Mendeleev's Periodic Table.
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Explanation: because hydrogen has only one electron which occupies 1s orbital , so it must be placed in s block .....but it's property doesn't match with s block elements like s block elements are metals but hydrogen isn't.....and further more chemical and physical properties doesn't get that much matched with s block elements so, it's position is not fixed
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