To determine a covalent compound formula from a compound name, start byfor each element in the compound. Then, use theto determine the subscripts necessary to. a. create a formula unit with no net charge. b. make a symmetrical arrangement of atoms. c. match the number of each element in the name.

c. match the number of each element in the name.

Explanation:

For making the formula of covalent compound, we must write the symbol of the first element of covalent compound and then write the name of the second element and add the suffix with the symbol of second element. Also put the number of each element with the name which indicates the quantity of elements that take part in forming new covalent compound.

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a