Question

question 8 of 10
which of the following is the correct name for mgbr₂?
a. magnesium dibromide
b. magnesium(ii) bromide
c. magnesium dibromine
d. magnesium bromide

Explanation:

Magnesium (Mg) is a Group - 2 metal with a fixed charge of +2. Bromine (Br) forms a bromide ion (Br⁻). In naming ionic compounds, for metals with fixed charges like magnesium, we simply state the metal name followed by the non - metal name with the ending changed to 'ide'. We don't use prefixes like 'di -'for ionic compounds formed by main - group metals with fixed charges, nor do we use Roman numerals for such metals.

Answer:

D. Magnesium bromide