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Question

State three reasons (at least one must be chemical ) for believing that sodium(Na) is a metal.

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Solution

Dear user,1)All metals have their outermost electron in s orbital and so is Na having.2)Metals are good conductor of heat and electricity and so is Na.3)They all crystallise in bcc structure and so isNa having.Chemical property :Metals forms the oxide which are acidic in nature and Na also forms.Reaction is as follows : 4Na(s)+O2(g)2Na2O(s)

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