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
Bromine
No, oxygen, as a nonmetal element, cannot have an expanded octet in its valence shell.
Sulfur powder is a nonmetal. It is a chemical element with the atomic number 16 and is classified as a nonmetal on the periodic table.
The lead of a pencil is made mostly of the nonmetal carbon but the rest of the pencil is neither metal nor nonmetal (except for the bit of metal near the eraser) because it is not an element.
Nonmetal.