# atomic number 19
## Noun (N)
### Sense: a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite
- ธาตุโปแตสเซียม
- เลขอะตอม 19
- โปแตสเซียม
- โพแทสเซียม