it is a transition metal
FeO is not a nonmetal; it is a compound composed of iron (a metal) and oxygen (a nonmetal).
Iron is a metal.
Rusting is an oxydation reaction; in this case oxygen (a nonmetal) react with iron (a metal). Oxygen is a very reactive chemical element.
Iron is a metal.
Hydrogen
No, selenium is a nonmetal.
Bromide is the ion of the element bromine, which is a nonmetal.
Bromine is the only nonmetal element that is a liquid at room temperature.
Fluoride is the ion of fluorine, which is a nonmetal.
it is nonmetal
nonmetal
Yes