It is yttrium III oxide.
The formula for the ionic compound formed between element Y and oxygen (O) would depend on the charges of the ions. If Y has a positive charge of +2 and O has a negative charge of -2 to form a stable compound, the formula would be Y2O2, simplifying to YO.
The compound name for SiI4 is tetrasilane.
The compound name of Al2O3 is aluminum oxide.
The compound name for SiI4 is silicon tetraiodide.
The name of the compound CH3NH3Br is methylammonium bromide.
The ionic compound formed by reaction of the elements with atomic symbols K and O is named potassium oxide and has the formula unit K2O. (The lower case letters k and o are never proper atomic symbols!)
The formula for the ionic compound formed between element Y and oxygen (O) would depend on the charges of the ions. If Y has a positive charge of +2 and O has a negative charge of -2 to form a stable compound, the formula would be Y2O2, simplifying to YO.
The name of this compound is iodine heptafluoride.
The compound name for 7H2O is heptahydrate.
The compound name for SiI4 is tetrasilane.
Tetranitrogen tetraselenide is the name of the compound.
The name of the compound Cl2O3 is dichlorine trioxide.
The compound name for MnBr2 is manganese(II) bromide and the compound name for NaPO4 is sodium phosphate.
The name of the compound H2C2O4 is oxalic acid.
The compound name of Al2O3 is aluminum oxide.
The compound name for C2H4Br2 is 1,2-dibromoethane.
The compound name for ASO3 is arsenic trioxide.