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K
Potassium
#19 · I-Alkali Metal
| I-Mass | 39.098 u |
| Uxinano | 0.862 g/cm³ |
| Uthuthu | 336.53 K |
| Ukomisa | 1032.0 K |
| Electronegativity | 0.82 |
| Ionization energy | 418.8 kJ/mol |
| Atomic radius: | 227.0 pm |
| I-Block | s- iblock |
| Ilizwe (RT) | I-Solid |
| Qwalasela | [Ar] 4s1 |