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How to Write the Formula for Sodium ion

Learning to name chemical compounds requires that you:

  • Determine the type of compound you are working with.
  • Apply the rules for naming that type of compound.
  • Practice until it becomes second nature.
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Get more practice writing formulas for compounds.

For Sodium ion use the hints and resources below to help write the formula.

Hint for Writing the Formula for Sodium ion

We know that Sodium (Na) forms a positive ion because its name is written exactly like it is found on the Periodic table.

We also know that it's positive because Sodium is a metal.

Finally, we know the charge because Sodium is in Group 1 (column 1) on the Periodic table. All elements in Group 1 will form ions with a +1 charge.
Sodium ion Resources