What do the Roman numerals in a cation's name indicate?

how many valence electrons in the atom

the cation's ability to become an anion

the positive charge on the cation

how many compounds the cation can form

Verified Answer :

The Roman numerals in a cation's name indicate: THE POSITIVE CHARGE ON THE CATION

Cations are metallic atoms that loosely hold it electrons, making it easy to lose electrons.

The Roman numerals in a cation's name not only indicates the charge on the cation but it makes it easier to distinguish cations that share the same metal name.

Answer: Option (c) is the correct answer.

Explanation:

When an element gain electrons then it acquires a negative charge. For example, \(Cl + 1e^{-} \rightarrow Cl^{-}\)

Whereas when an element loses electrons then it acquires a positive charge.

For example, \(Fe \rightarrow Fe^{2+} + 2e^{-1}\)

The atom \(Fe^{2+}\) can also be written using roman numerals as Fe(II).

Therefore, we can conclude that roman numerals in a cation's name indicate the positive charge on the cation.