Which of the following is the metallic ion present in sodium fluoride?

Determine the ions present in sodium fluoride: sodium (Na) forms a cation with a charge of +1, written as \(Na^{+}\), and fluoride (F) forms an anion with a charge of -1, written as \(F^{-}\).

Compare the given options with the ions in sodium fluoride. The options \(Mg^{2+}\) and \(Ca^{2+}\) are metal ions but are not part of sodium fluoride.