Answer:
P6S9
Step-by-step explanation:
Firstly, let's write the numbers in Latin
1 = mono
2 = di
3 = tri
4 = tetra
5 = penta
6 = hexa
7 = hepta
8 = octa
9 = nona
Secondly, write the symboles of the given elements:
Phosphorus is P
Sulfide is S
Finally, connect the numbers and symbols.
Rule of pronunciation: Number of first element + symbol of first element + number of second element + symbol of second element
P6S9
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