Elements · ← Ar Argon · Ca Calcium →
K Potassium
Basic facts
| Symbol | K |
|---|---|
| Atomic number | 19 |
| Standard atomic weight | 39.0983 |
| Group | 1 |
| Period | 4 |
| Block | s-block |
| Category | Alkali metal |
| Standard state | Solid |
| Discovered | 1807 |
Source: PubChem, Potassium (periodic table data, retrieved 2026-10-19). Group and period follow the standard 18-column periodic table.
Biotech uses & experiments
No dedicated element entries yet; the topics and entries below involve potassium.
Topics on this site about potassium
- Cell membranes and ion channels1 entries
Entries elsewhere on the site that mention potassium
Found by name, common compounds and chemical formulas in each entry.
- Bismuth quadruple therapy for H. pylori · Bismuth · 2011
- Structure of the potassium channel · Cell membranes and ion channels · 1998
- Thallium-201 heart imaging · Thallium · 1975
Patents
Search Google Patents for potassium in biological and medical uses: all patents · recent applications (2022+)
A patent is a legal claim, not proof that something works. See the Patents page.