Question

5
multiple choice 1 point
nif₂
nickel fluoride
nickel (ii) fluoride
nickel (i) fluoride
nickel fluoride (ii)

Explanation:

Step1: Determine the charge of fluoride ion

The fluoride ion (\(F^-\)) has a charge of \(- 1\).

Step2: Calculate the charge of nickel ion

In \(NiF_2\), let the charge of nickel ion be \(x\). Using the rule that the sum of charges in a neutral compound is zero: \(x+2\times(-1) = 0\). Solving for \(x\), we get \(x = + 2\).

Step3: Name the compound

For ionic compounds with transition metals (nickel is a transition metal), we use Roman numerals to indicate the charge of the metal ion. So the name is Nickel (II) Fluoride.

Answer:

Nickel (II) Fluoride