Question

1. which of the following is the metallic ion in sodium fluoride?

f 2+

na 1-

na 1+

f 2-

clear all

Explanation:

Sodium fluoride has the formula \(NaF\). Sodium (\(Na\)) is a metal. In ionic compounds, metals form cations (positive ions). Sodium has a +1 charge when it forms an ion (\(Na^{1 +}\)). Fluorine (\(F\)) is a non - metal and forms an anion (\(F^{-}\)). The options \(F^{2+}\) and \(F^{2 -}\) are incorrect because fluorine typically has a - 1 charge in compounds. The option \(Na^{1-}\) is incorrect because sodium loses an electron to form a positive ion.

Answer:

\(Na^{1+}\)