Which of the following is the metallic ion in sodium fluoride? 1. Na 1- 2. Na1 + 3. F 2- 4. F 2+

2. Na1 +

Explanation:

The formular for sodium fluoride is; NaF

The metal in sodium flouride is sodium.

Sodium belongs to group 1, hence would lose one electron when forming ions.

This is represented as;

Na+

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