Cupric oxide, 267— phosphide

There is an older, alternate naming system for the transitional metals when they ionically bond to form salt compounds. There may be chemicals encountered still using this older naming system, therefore, responders should be familiar with it. In this system, the suffixes ic and ous are used to indicate the higher and lower valence numbers (outer-shell electrons) of a transitional metal. For example, if copper I combines with chlorine, the name would be cuprous chloride. If copper I combines with oxygen, the name would be cuprous oxide. The lowest number of electrons in the outer shell of copper is one. When the metal with the lowest number of electrons is used, the suffix in the alternate naming system is ous. When the metal with the highest number of electrons is used, the suffix is ic. If copper n conbined with phosphorus, it would create cupric phosphide. For example, copper II combined with chlorine would create cupric chloride. 

Calcium oxide Cupric sulfate anhydrous Cupric sulfate pentahydrate Di-iron phosphide steel mfg., specialty Calcium silicon steel priming Zinc potassium chromate steel processing Bismuth... 

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