ScI3
The chemical formula for scandium (III) and phosphate ion is ScPO4.
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 sulphide (or discandium trisulphide): Sc2S3
The chemical formula for potassium iodine is KI
Iodine Flouride
The chemical formula for scandium (III) and phosphate ion is ScPO4.
Formula: ScCl3
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.
Assuming it's scandium(III), which is its most common valence state, the formula would be Sc2Se3.
Scandium sulphide (or discandium trisulphide): Sc2S3
I2 is the chemical formula for iodine. It is a diatomic solid.
Formula: I2
I2 is the chemical formula. That is diatomic iodine.
The chemical formula for potassium iodine is KI
Iodine Flouride
Formula: HI
Formula: IF3