Bariy
56
Ba
Guruh
2
Davr
6
Block
s
Protonlar
Elektronlar
Neytronlar
56
56
81
General Properties
Atom raqami
56
Atom massasi
137,327
Mass Number
137
Turkum
Ishqoriy yer metallar
Ranggi
Silver
Radioaktivlik
Yoʻq
From the Greek word barys, heavy
Crystal Structure
Body Centered Cubic
Tarix
Barium was identified as a new element in 1774 by Carl Wilhelm Scheele.
Barium was first isolated by electrolysis of molten barium salts in 1808, by Sir Humphry Davy in England.
Robert Bunsen and Augustus Matthiessen obtained pure barium by electrolysis of a molten mixture of barium chloride and ammonium chloride.
Barium was first isolated by electrolysis of molten barium salts in 1808, by Sir Humphry Davy in England.
Robert Bunsen and Augustus Matthiessen obtained pure barium by electrolysis of a molten mixture of barium chloride and ammonium chloride.
Electrons per shell
2, 8, 18, 18, 8, 2
Elektron konfiguratsiyasi
[Xe] 6s2
At low doses, barium acts as a muscle stimulant
Physical Properties
Phase
Qattiq modda
Zichlik
3,594 g/cm3
Erish harorati
1000,15 K | 727 °C | 1340,6 °F
Qaynash harorati
2170,15 K | 1897 °C | 3446,6 °F
Heat of Fusion
8 kJ/mol
Heat of Vaporization
140 kJ/mol
Solishtirma issiqlik sigʻimi
0,204 J/g·K
Abundance in Earth's crust
0,034%
Abundance in Universe
1×10-6%
CAS Number
7440-39-3
PubChem CID Number
5355457
Atomic Properties
Atom radiusi
222 pm
Kovalentlik radiusi
215 pm
Elektrmanfiylik
0,89 (Poling boʻyicha)
Ionization Potential
5,2117 eV
Molyar hajm
39,24 cm3/mol
Issiqlik oʻtkazuvchanlik
0,184 W/cm·K
Oksidlanish darajasi
2
Applications
Barium is used as a flashed getter in vacuum tubes to remove the last traces of gases.
It is often used in barium-nickel alloys for spark plug wire.
Barium sulfate is important to the petroleum industry as a drilling fluid in oil and gas wells.
Barium is also used in medicine to detect abnormalities in the digestive system.
It is often used in barium-nickel alloys for spark plug wire.
Barium sulfate is important to the petroleum industry as a drilling fluid in oil and gas wells.
Barium is also used in medicine to detect abnormalities in the digestive system.
Water-soluble barium compounds are poisonous
Izotoplar
Barqaror izotoplar
130Ba, 132Ba, 134Ba, 135Ba, 136Ba, 137Ba, 138BaBeqaror izotoplar
114Ba, 115Ba, 116Ba, 117Ba, 118Ba, 119Ba, 120Ba, 121Ba, 122Ba, 123Ba, 124Ba, 125Ba, 126Ba, 127Ba, 128Ba, 129Ba, 131Ba, 133Ba, 139Ba, 140Ba, 141Ba, 142Ba, 143Ba, 144Ba, 145Ba, 146Ba, 147Ba, 148Ba, 149Ba, 150Ba, 151Ba, 152Ba, 153Ba