Question

Which of the following have both the correct name of the ion and the correct formula? Choose all that are correct.

A. Chloride, Cl2-
B. Cadmium cation, Cd2+
C. Cobalt(III) cation, Co3+
D. Nitride, N3-
E. Copper cation, Cu2+
F. Silver cation, Ag+
G. Strontium cation, Sr2+
H. Lead cation, Pb2+

Answer 1

Correct ion names and formulas include Cadmium cation (Cd2+), Cobalt(III) cation (Co3+), Nitride (N3-), Silver cation (Ag+), Strontium cation (Sr2+), and Lead cation (Pb2+).

Step-by-step explanation:

The correct name of the ion and the correct formula among the choices given are:

• B. Cadmium cation, Cd2+: This is correct because cadmium is one of the transition metals with a fixed charge of 2+.
• C. Cobalt(III) cation, Co3+: Cobalt can have more than one charge, but when specified as Cobalt(III), the charge is correctly represented as 3+.
• D. Nitride, N3-: This is the correct formula for the nitride ion, which has a 3- charge.
• F. Silver cation, Ag+: Silver has a fixed charge of 1+, so this representation is correct.
• G. Strontium cation, Sr2+: Strontium commonly forms a cation with a 2+ charge.
• H. Lead cation, Pb2+: Lead can have multiple charges, but when the charge is not specified, it is commonly 2+.