Chemistry question on non-metals

which of the following is a nonmetal

He

Cu

Hg

Re

which of the following is a nonmetal

Ne

Cd

Te

Mg

Neon is a gas

that is very stable. It does not readily combine with other elements which catergory does neon belong to

metal

metalloid

nonmetal

hallogen

diamond and graphite are 2 different forms of carbon what are these 2 forms called

allotropes

metals

halogens

noble gases

which of the following nonmetal forms a gas commonly found in the atmosphere

Rn

N

I

Cl