Any of the Halogens (Fluorine, Chlorine, Bromine, Iodine, and Astatine) or Noble Gases (Helium, Neon, Argon, Krypton, Xenon, Radon) would be considered a nonmetal.
It would be a metal . The metal family takes up most of the periodic table
A new element is most likely metal because it gives people the most boners
Chlorine is the most reactive gas element. Chlorine is in the halogen family.
nonmental.
Cu2+
If it is a metal it is a reactive element.
Arsenic.
oxigen
krypton is a non-metal
Hydrogen is the element that is most likely to undergo nuclear fusion.
Fluorine and oxygen
hydrogen