Writing order of element symbols in chemical formula Example: si60c60

Writing order of element symbols in chemical formula Example: si60c60

Inorganic chemistry is usually written in the front of positive valence, silicon in si60c60 is + 4 valence, because although the outermost electron silicon and carbon are four, silicon has three electron layers, while carbon has only two. The electron of silicon is easier to lose than that of carbon, which is positive valence