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
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.