anthony sylka

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Name:Helium
Symbol:He
Atomic Number:
Atomic Mass:2
Standard State:gas at 298 k
Group name:noble gas
Period in Periodic Table:1
Color:colourless
Classification:non-metallic


Helium is the second most abondent element. A particals are doubly ionised(He2+). Helium is used in lighter than air baloons. To melt helium it has to be -458 f and the bioling point is -452 f. Helium is used to fill baloons,protective gas in growing cilocon,cooling medium for nuclear reacters and a few others. That is almost every thing.


external image helium.jpgexternal image helium-atom.gif