Question

question 9 of 10
which of the following is the correct formula for copper(ii) fluoride?
a. cu₂f₃
b. cuf
c. cu₂f
d. cuf₂

Explanation:

Step1: Determine copper(II) ion charge

Copper(II) has a charge of +2, written as $Cu^{2+}$.

Step2: Determine fluoride ion charge

Fluoride ion has a charge of - 1, written as $F^-$.

Step3: Balance charges

To balance the charges in an ionic compound, we need 2 fluoride ions for every 1 copper(II) ion. So the formula is $CuF_2$.

Answer:

D. $CuF_2$