its helium (He),bocz it lighter than any other metals like ar,kr,xe ect.....
No, because the charcoal has absorbed the impurities in the air or water. What has been absorbed can't be cleaned out. Throw it away a buy a new one.
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
Charcoal and gas grills usually cost around the same in the long run. It is more expensive to buy a gas grill, but charcoal to use in a charcoal grill is much more expensive than gas to use in a gas grill.
Yes. Helium is a noble gas.
Helium is a noble gas