Question 6.9: Name the molecular compound NCl3.

STEP 1   Name the first nonmetal by its e lement name. In NCl_{3} , the first nonmetal (N) is nitrogen.

STEP 2   Name the second nonmetal by using the first syllable of its element name followed by ide. The second nonmetal (Cl) is chloride.

STEP 3   Add prefixes to indicate the number of atoms (subscripts). Because there is one nitrogen atom, no prefix is needed. The subscript 3 for the Cl atoms is shown as the prefix tri. The name of NCl_{3} is nitrogen trichloride.