its hydrogen...it exist in 3 isotopic form...protium,deuterium nd tritium.
Its not said isotropic form. In three states?
but still hydrogen is an element!
its not isotropic,its isotopic...!..having same atomic no. but different mass no.

Answers

2014-07-22T22:44:08+05:30

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Water exist in all three states i.e., solids, liquids & gas.
Solid- Ice
Liquid- Water
Gas- Steam.
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2014-07-22T22:45:19+05:30
It is water which exists in all the three states....
they are- solid-ice
              liquid-water
              gas-water vapour
                               
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