What are the names and chemical formulas for five compounds in which Krypton exists?

The names and chemical formulas for five compounds in which Krypton exists are Krypton Tetrachloride (KrCl4), Krypton Difluoride (KrF2), Krypton Hexabromine (KrBr6), Krypton Dichromate (Kr2Cr2O7), Krypton Chromate (KrCrO4)