A. Chemical Name to Chemical Formula
1. First write down the symbol of the non-metal and then the non-metal.
2. Using the table of prefix below, the subscript is the number from the prefix. For no prefix, it is a subscript of "1"
EXAMPLE:Disulfur heptachloride
Step 1 S Cl
Step 2 S2Cl6
MORE EXAMPLES: Carbon disulfide, Decaoxygen pentanitride (answers on practice sheet)
PREFIX TABLE
mono- 1
di- 2
tri- 3
tetra- 4
penta- 5
hexa- 6
hepta- 7
octa- 8
nona-9
deca-10
B. Chemical Formula to Chemical Name 1. Write down the first non- metal name.
2. Add prefix from table