Question

question 4 (0.5 points) give the best systematic name for the compound ni3n2 1 2 a. trinickel b. nickel c. nickel (iii) d. nickel (ii) e. dinitride f. nitride g. nitrogen h. nike

Explanation:

In naming ionic compounds, the metal is named first with its oxidation state in Roman numerals in parentheses if it has variable oxidation states. Nickel can have different oxidation states. For $Ni_3N_2$, nitrogen has an oxidation state of - 3. Using the criss - cross method in reverse, if there are 2 nitrogen atoms with a total negative charge of -6, and 3 nickel atoms, each nickel atom has an oxidation state of +2. The non - metal is named second with the ending 'ide'. So the name is nickel(II) nitride.

Answer:

1. D. nickel (II)
2. F. nitride