Electrolyte Symbols
Copy electrolyte symbols and common note snippets for medical, biology, and chemistry notes.
Keep the ions and trend markers most often used in electrolyte notes together on one focused page.
Most used together
PreviewIndividual symbols
Most used together
Copy the whole set or pick individual fragments from this page.
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Individual symbols
Useful combinations
Grouped by how people write
Core electrolytes
The ions most frequently written together in study notes.
Acid-base and other ions
Useful charged species for biology and chemistry notes.
Trends and thresholds
Mark high, low, approximate, and threshold results.
Ready to paste
Copy-ready snippets
Useful combinations for notes, equations, and documents. Copy one as-is, then edit it in your document.
Accurate use
Technical and compatibility guide
Use this page to type common ion formulae and neutral trend labels in study notes. A copied ion or arrow does not provide a value, reference range, diagnosis, or clinical interpretation.
| Character | Unicode | HTML | LaTeX |
|---|---|---|---|
| Na⁺Sodium ion | U+004E U+0061 U+207A | Na⁺ | \mathrm{Na^+} |
| Ca²⁺Calcium ion | U+0043 U+0061 U+00B2 U+207A | Ca²⁺ | \mathrm{Ca^{2+}} |
| HCO₃⁻Bicarbonate ion | U+0048 U+0043 U+004F U+2083 U+207B | HCO₃⁻ | \mathrm{HCO_3^-} |
Common mistakes
- Na is the element symbol; Na⁺ is an ion. Do not drop the charge when the charged species is what the note means.
- Arrows such as Na⁺ ↑ are shorthand only. Include the actual value and context when precision matters, and do not use this page as clinical guidance.
Word, Docs, Notion, and plain text
These short ion strings paste into Word, Google Docs, Notion, and plain text. If a font renders charges poorly, use an equation editor rather than replacing superscripts with visually similar punctuation.
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Quick answers
Frequently asked questions
How do I type Na⁺?
Copy Na⁺ from this page and paste it into your notes. The plus sign is a Unicode superscript character.
How do I type Ca²⁺?
Use the Ca²⁺ copy button above. It combines ordinary letters with superscript two and plus characters.
Can I use these in Notion and Google Docs?
Yes. These are standard text characters and work in Notion, Google Docs, Word, Obsidian, and most note apps.
Why do some superscripts look different across apps?
Each app and font renders Unicode superscripts slightly differently, but the copied text remains the same.