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ranakdeepak... , asked a question
Subject: Chemistry , asked on 6/3/12

Why is oxygen a gas and Sulphur a solid ?

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Sanjeev A.r From Kendriya Vidyalaya, added an answer, on 7/3/12
81 helpful votes in Chemistry

oxygen exists as a diatomic molecule while sulphur exists as a polyatomic molecule hence sulphurs  mass will be more therefore it will have more van der waal forces,hence more boiling point.

inother words diatomic oxygen ,will have less boiling point therefore it is present in gaseous state 

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Akhil Batra From Jawahar Navodaya Vidyalaya, added an answer, on 6/3/12
10 helpful votes in Chemistry

as oxygen is diatomic but sulphur is polyatomic thus making it more denser

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