Which abbreviation is used for Sodium ion?

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Multiple Choice

Which abbreviation is used for Sodium ion?

Explanation:
The idea is that ions are shown with the element symbol plus a charge. Sodium commonly forms a +1 ion, so a notation that shows sodium as Na1 (indicating a +1 charge) represents a sodium ion. The other items point to a glucose-containing IV solution (D5W), a gas (nitrous oxide), and a unit (millimeters), none of which are ions. So Na1 is the abbreviation for Sodium ion.

The idea is that ions are shown with the element symbol plus a charge. Sodium commonly forms a +1 ion, so a notation that shows sodium as Na1 (indicating a +1 charge) represents a sodium ion. The other items point to a glucose-containing IV solution (D5W), a gas (nitrous oxide), and a unit (millimeters), none of which are ions. So Na1 is the abbreviation for Sodium ion.

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