what is helium and write short plzzzz....
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hey mate helium is a gas which is used in water observed balloon .
mrboss1978:
hlo
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Hey mate here is the answer of ur question;
Helium ;
1) It is a chemical element with symbol He and atomic number 2.
2)It is an inert element as it has completely filled Valence shell and is the first noble gas group in the periodic table .
3)It's boiling point is the lowest among all elements.
4)Its group number is 18 and belongs to S- block .
5) It was discovered by Sir William Ramsay in London.
<Hope it helps u mate >
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