argon is blue in discharge tube
No, it is a noble gas
Radon is a noble gas and is radioactive.
no. it is a molecule, not a noble gas
A noble gas is colorless.
Neon is a noble gas.
its a noble gas.
Argon is a noble gas
argon is a noble gas
Yes. Helium is a noble gas.
Helium is a noble gas
A noble gas.
no boron is not a noble gas but it is a nonmetal