To make balloons float and to make the pitch of your voice higher ;]
Heluim belongs to a group of elements called the noble gases
He
No.
Heluim is a gas, used for filling up balloons and is also found in space
gas
Look at a periodic table. He is element #2, with 2 protons and 2 neutrons in the nucleus, and 2 elecrtrons in the 1s orbital, making it stable.
Yes
Both are gases.
The chemical formula for helium is He. It is a noble gas with an atomic number of 2.
heluim
The chemical symbol for Helium is He
no, it is an alpha particle.