Question

Of the elements Pt, V, Li, and Kr, which is a nonmetal?

Answer 1

Only `Kr`, krypton is a gas.

Explanation:

Most of the Periodic Table are metals. Platinum, vanadium, and lithium are all metals. Krypton is a Noble Gas (boiling point `-158` `""^@C`), a heavy mono-atomic gas that would form very few compounds.