Question

In which of the following groups of ions are the charges all shown correctly?

A) Li⁻, O²⁻, S²⁺
B) Br⁻, Ca²⁺, Al³⁺
C) F⁻, K²⁻, Mg²⁺
D) I⁻, Rb⁻, Na⁺

Answer 1

The group of ions in which the charges are all shown correctly is option B) Br⁻, Ca²⁺, Al³⁺.

Step-by-step explanation:

The group of ions in which the charges are all shown correctly is option B) Br⁻, Ca²⁺, Al³⁺.

In this group, bromide (Br⁻) has a charge of -1, calcium (Ca²⁺) has a charge of +2, and aluminum (Al³⁺) has a charge of +3. These charges are consistent with the periodic table and the number of electrons each ion has gained or lost to achieve a stable electron configuration.