Helium is classified as a non-metallic element. It is a gas at room temperature and belongs to group 0 which is called the noble gases. It is very a very stable element and has a low density.
Helium by itself is an element.
helium is a gas at STP
Type your answer here... when helium atom removes a electron it forms a helium+ ion.(He+)
Helium does not form any compounds.
There are two naturally occurring isotopes of helium: He-3 (which is very rare, comprising 0.00014% of naturally occurring helium), and He-4 (which comprises the other 99.99986%of naturally occurring helium). Whether helium is one type of atom or not then depends on the definition of "one type of atom"; if He-3 and He-4 are considered different types of atom due to their differing numbers of neutrons, then no, helium is not one type of atom; if He-3 and He-4 are both considered the same type of atom due to their common number of protons, then yes, helium is one type of atom.
hydrogen
No.
what is an elment elment is a substance made of one kind of atom.
helium is a gas at STP
Helium is chemically inert and does not form any type of ions.
Helium has only one type of gas (which is helium itself)
Cobalt
yes, symbol Ag
Type your answer here... when helium atom removes a electron it forms a helium+ ion.(He+)
Silicon (Si)
Helium does not form any compounds.
There are two naturally occurring isotopes of helium: He-3 (which is very rare, comprising 0.00014% of naturally occurring helium), and He-4 (which comprises the other 99.99986%of naturally occurring helium). Whether helium is one type of atom or not then depends on the definition of "one type of atom"; if He-3 and He-4 are considered different types of atom due to their differing numbers of neutrons, then no, helium is not one type of atom; if He-3 and He-4 are both considered the same type of atom due to their common number of protons, then yes, helium is one type of atom.
Hydrogen is the first element.