Why hydrogen dosen't have any fixed place in periodic table?
Answers
Hence, it was placed in IA group VI B group and could not be given a fixed position in Mendeleev's Periodic Table. 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.
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Hydrogen doesn't have any fixed place in periodic table because hydrogen resembles alkali metals in its electronic configuration and some other properties but it also resembles halogens in its electronic configuration and in some other properties .
However hydrogen differs from both alkali metals and halogens in some other properties like oxide of H2O is neutral, oxides of alkali metals are basic while those of halogens are acidic .
Therefore the position of hydrogen still remains to be controversial even in the modern periodic table
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