Kaliy
19
K
Guruh
1
Davr
4
Blok
s
Protonlar
Elektronlar
Neytronlar
19
19
20
Umumiy xususiyatlar
Atom raqami
19
Atom massasi
39,0983
Mass raqami
39
Turkum
Ishqoriy metallar
Ranggi
Kumush
Radioaktivlik
Yoʻq
From the English word, potash - pot ashes; Latin kalium, Arab qali, alkali
Kristall tuzilma
Tana markazli kubik
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.
Qobiqdagi elektronlar soni
2, 8, 8, 1
Elektron konfiguratsiyasi
[Ar] 4s1
People whose diets are low in potassium can suffer from hypokalemia
Jismoniy xususiyatlar
Faza
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
Eritish issiqligi
2,33 kJ/mol
Bugʻlanish issiqligi
76,9 kJ/mol
Solishtirma issiqlik sigʻimi
0,757 J/g·K
Yer po‘stidagi miqdori
1,5%
Olamdagi miqdori
0,0003%
CAS raqami
7440-09-7
PubChem CID raqami
5462222
Atom xususiyatlari
Atom radiusi
227 pm
Kovalentlik radiusi
203 pm
Elektrmanfiylik
0,82 (Poling boʻyicha)
Ionlashish potensiali
4,3407 eV
Molyar hajm
45,46 cm3/mol
Issiqlik oʻtkazuvchanlik
1,024 W/cm·K
Oksidlanish darajasi
-1, 1
Qo‘llanilish sohalari
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