hydrogen resembles alkali metals in many aspects but differs in
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Difference from Alkali metal and halogens
Hydrogen has less tendency to form H‾ ions as compared to halogen which readily form halide ions(X‾) ions. 2) Unlike halogens and alkali metals, hydrogen contains only one proton in its nucleus and only one electron in the extranuclear part.
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Explanation:
hydrogen has one shell whereas alkali metals have two or more shells... also alkali metals form basic oxide whereas hydrogen oxide is neutral in nature...
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