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avineshkumar.2010... , asked a question
Subject: Science , asked on 25/11/10

Why sodium is soft ?


,Meritnation Expert added an answer
Answered on 26/11/10

Hi Avinesh,
Sodium is soft owing to weak metallic bonding due to its large size and univalent nature. The word univalent means its valency is one i.e. it has only one electron in ts valence shell.
Hope, the answer is clear to you.

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ddanishsid... , added an answer
Answered on 30/11/11

 why heliun neon etc gases called nobel gasses?