Kaliy
19
K
Guruh
1
Davr
4
Block
s
Protonlar
Elektronlar
Neytronlar
19
19
20
General Properties
Atom raqami
19
Atom massasi
39,0983
Mass Number
39
Turkum
Ishqoriy metallar
Ranggi
Silver
Radioaktivlik
Yoʻq
From the English word, potash - pot ashes; Latin kalium, Arab qali, alkali
Crystal Structure
Body Centered Cubic
Tarix
Potassium's symbol K comes from 'kalium' the name of the element in Germany and Scandinavia.
Potassium metal was first isolated in 1807 by Sir Humphry Davy, who derived it from caustic potash by the use of electrolysis of the molten salt with the newly discovered voltaic pile.
Potassium was the first metal that was isolated by electrolysis.
Potassium metal was first isolated in 1807 by Sir Humphry Davy, who derived it from caustic potash by the use of electrolysis of the molten salt with the newly discovered voltaic pile.
Potassium was the first metal that was isolated by electrolysis.
Electrons per shell
2, 8, 8, 1
Elektron konfiguratsiyasi
[Ar] 4s1
People whose diets are low in potassium can suffer from hypokalemia
Physical Properties
Phase
Qattiq modda
Zichlik
0,862 g/cm3
Erish harorati
336,53 K | 63,38 °C | 146,08 °F
Qaynash harorati
1032,15 K | 759 °C | 1398,2 °F
Heat of Fusion
2,33 kJ/mol
Heat of Vaporization
76,9 kJ/mol
Solishtirma issiqlik sigʻimi
0,757 J/g·K
Abundance in Earth's crust
1,5%
Abundance in Universe
0,0003%
CAS Number
7440-09-7
PubChem CID Number
5462222
Atomic Properties
Atom radiusi
227 pm
Kovalentlik radiusi
203 pm
Elektrmanfiylik
0,82 (Poling boʻyicha)
Ionization Potential
4,3407 eV
Molyar hajm
45,46 cm3/mol
Issiqlik oʻtkazuvchanlik
1,024 W/cm·K
Oksidlanish darajasi
-1, 1
Applications
The greatest demand for potash has been in its use for fertilizers.
Potassium is an essential constituent for plant growth and is found in most soils.
Potassium nitrate is the main explosive ingredient in gunpowder.
Potassium hydroxide is used in the manufacture of soft soaps and as an electrolyte in alkaline batteries.
Potassium is an essential constituent for plant growth and is found in most soils.
Potassium nitrate is the main explosive ingredient in gunpowder.
Potassium hydroxide is used in the manufacture of soft soaps and as an electrolyte in alkaline batteries.
Potassium must be handled with great care with full skin and eye protection
Izotoplar
Barqaror izotoplar
39K, 41KBeqaror izotoplar
32K, 33K, 34K, 35K, 36K, 37K, 38K, 40K, 42K, 43K, 44K, 45K, 46K, 47K, 48K, 49K, 50K, 51K, 52K, 53K, 54K, 55K