Potassium K
Element 19 — in the list.
Identity
- Atomic number
- 19
- Symbol
- K
- Most abundant neutron number
- 20
- Flow object
- fo-c0788a9248a84b5b
- Elementary flows
- 17
- PubChem
- https://pubchem.ncbi.nlm.nih.gov/element/19
Nuclides and ions
1 nuclides, 1 ionsA nuclide and an ion of an element are flow objects in their own right — K and each of the records below are separate substances, resolved separately and characterised separately. What holds them together is a statement on the child naming this element as its parent, which is why they are drawn under it rather than beside it.
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Nuclides 1
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Half life 1.248 Gy ± 0.003. Decay IS=0.0117±0.1%; β-=89.28±1.3%; β+=10.72±1.3%. chemlin
28 further nuclides are known and are not in this list: they are too short-lived for an inventory to carry, and their absence is a decision rather than a gap.
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Ions 1
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Nuclide detail
| Nuclide | Mass number | Half life | Decay modes | Bq/g |
|---|---|---|---|---|
| Potassium-40 | 40 | 1.248 Gy ± 0.003 | IS=0.0117±0.1%; β-=89.28±1.3%; β+=10.72±1.3% | 264,500.88326 |