metal
Assuming it's scandium(III), which is its most common valence state, the formula would be Sc2Se3.
Scandium is Sc.
Scandium Phosphate
The chemical formula for scandium is Sc and for iodine is I2.
Name: scandium Symbol: Sc
Scandium is a natural chemical element.
Scandium has the chemical symbol Sc and 21 is it's atomic number. A link is provided to the Wikipedia article on this (usually considered) rare earth element.
Scandium has a higher oxidation state than calcium. Scandium typically exhibits a +3 oxidation state, while calcium usually shows a +2 oxidation state.
Scandium is a natural chemical element; minerals containing scandium: thortveitite, euxenite, gadolinite.
Scandium is a natural chemical element, metal, solid, rare.
Scandium has four electronic shells with 2, 8, 9, 2 electrons.
ScBr3 is the chemical formula for scandium tribromide. It is a compound composed of scandium and bromine atoms, where scandium has a +3 oxidation state. ScBr3 is a yellowish solid at room temperature and is commonly used as a catalyst in organic synthesis reactions.