CBSE Class 9 Answered
Which non metal is lightest ?
Asked by Turjo Bhattacharjee | 10 Jul, 2015, 10:14: PM
Expert Answer
Helium gas is only twice as heavy as hydrogen gas. But as hydrogen shows properties of both metals and non-metals it has a special position in periodic table. So taking that into consideration He is the lightest non-metal.
Answered by Prachi Sawant | 11 Jul, 2015, 04:29: PM
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