Multiple Choice
Which of the following is the correct chemical formula for aluminum(III) oxide?
104
views
3. Chemical Reactions
Naming Ionic Compounds
Multiple Choice
Which of the following is the correct chemical formula for nickel(II) fluoride?
A
Ni2F2
B
Ni2F
C
NiF
D
NiF2
Verified step by step guidance1
Identify the charge on the nickel ion in nickel(II) fluoride. The (II) indicates that nickel has a +2 charge, so the ion is Ni^{2+}.
Determine the charge on the fluoride ion. Fluoride is the ion form of fluorine and has a charge of -1, so the ion is F^{-}.
To write the correct chemical formula, balance the total positive and negative charges so the compound is electrically neutral.
Since Ni^{2+} has a +2 charge and F^{-} has a -1 charge, you need two fluoride ions to balance one nickel ion, resulting in the formula NiF_2.
Verify that the formula NiF_2 has a net charge of zero: (+2) + 2(-1) = 0, confirming it is the correct formula for nickel(II) fluoride.
Related Videos
Related Practice
