Barium is a chemical element with atomic number 56 and symbol Ba. It is a heavy metal, mainly produced during the merger of supernovae and neutron stars. It is located in goup 8A of the Periodic Table of Elements.

Barium is a shiny metal, is quite soft, and is silvery-white when freshly reduced. It has a density of 3.5 g/cm3 and melts at 725°C. It is soluble in sulfuric acid, but not in nitric acid or hydrochloric acid.

Barium is used in a variety of applications, including in industry for melting metals, in the alloy industry, and as a catalyst in chemical reactions. It is also used as a material for making small metal parts and dyes for textiles.

In medicine, barium is used as a contrast agent for radiological examinations and for the treatment of kidney and liver diseases. It is also used as a medicine for osteoporosis.

Barium has many properties that make it a useful material for many applications. It is non-toxic, non-corrosive and non-flammable. It has a strong radiation absorption capacity and is easy to work with. It is often used for melting metals and alloys. Finally, it is also an excellent catalyst for chemical reactions.

725°
1640°

137.327

[Xe] 6s2

2
8
18
18
8
2

0.89

5.2117

Synthetic

Radioactive

Liquid

Gaseous

Electronic configuration diagram

Characteristics

Name	Barium
Number	56
Atomic	137.327
Symbol	Ba
Fusion	725
Boiling	1640
Density	3.594
Period	6
Group	2

Discovery	1808 Davy
Abundance	425
Radius	2.8
Electronegativity	0.89
Ionization	5.2117
Number of isotopes	25
Electronic configuration	[Xe] 6s2
Oxidation states	2
Electron by energy level	2,8,18,18,8,2

Minerals containing this element : 323

Mineral	Hardness	Density
Alforsite	5.00 / 5.00	4.73
Alsakharovite-Zn	5.00 / 5.00	2.90
Alstonite	4.00 / 4.50	3.69
Anandite	3.00 / 4.00	3.94
Andrémeyerite	5.50 / 5.50	4.15
Ankangite	6.50 / 6.50	4.44
Aradite
Arctite	5.00 / 5.00	3.11
Armenite	7.50 / 7.50	2.76
Arrojadite-(BaFe)		3.54
Arrojadite-(BaNa)
Arrojadite-(SrFe)
Arsenoflorencite-(Nd)	3.50 / 3.50	4.05
Arsenogorceixite	4.00 / 4.00	3.65
Arsenogoyazite	4.00 / 4.00	3.33
Asselbornite	3.00 / 3.00
Babefphite	3.50 / 4.00	4.31
Bafertisite	5.00 / 5.00	3.96
Balipholite	5.00 / 5.50	3.33
Banalsite	6.00 / 6.00	3.07
Baotite	6.00 / 6.00	4.42
Bario-olgite	4.00 / 4.50	4.00
Bario-orthojoaquinite	5.00 / 5.50	3.96
Barioferrite		5.31
Bariomicrolite	4.50 / 5.00	5.68
Barioperovskite
Bariopharmacoalumite	3.50 / 3.50	2.58
Bariopharmacosiderite	3.00 / 3.00	3.07
Bariopyrochlore	4.50 / 5.00	4.00
Bariosincosite	3.00 / 3.00
Barium-zinc alumopharmocosiderite	2.50 / 2.50
Barylite	6.00 / 7.00	4.02
Baryte	3.00 / 3.50	4.47
Barytocalcite	4.00 / 4.00	3.64
Barytolamprophyllite	2.00 / 3.00	3.62
Batiferrite	6.00 / 6.00
Batisite	5.90 / 5.90	3.43
Batisivite	7.00 / 7.00	4.62
Bauranoite	5.00 / 5.00	5.28
Bavsiite
Bazirite	6.00 / 6.50	3.82
Belkovite	6.00 / 7.00	4.16
Bellbergite	5.00 / 5.00	2.20
Benauite	3.50 / 3.50	3.65
Benitoite	6.00 / 6.50	3.60
Benstonite	3.00 / 4.00	3.60
Bergenite	2.00 / 3.00	4.10
Bigcreekite	2.00 / 3.00	2.66
Billietite		5.27
Biraite-(Ce)	5.00 / 5.00	4.76
Bjarebyite	4.00 / 4.00	4.02
Bobshannonite	4.00 / 4.00	3.79
Bobtraillite	5.50 / 5.50	3.16
Bornemanite	3.50 / 4.00	3.47
Bredigite		3.40
Brewsterite-Ba	5.00 / 5.00	2.45
Brewsterite-Sr	5.00 / 5.00	2.45
Burbankite	3.50 / 3.50	3.50
Burovaite-Ca		2.73
Bussenite	4.00 / 4.00	3.63
Byelorussite-(Ce)	5.50 / 6.00	3.92
Bykovaite	3.00 / 3.00	2.98
Byzantievite	4.50 / 5.00	4.25
Bøgvadite	4.00 / 4.00	3.85
Calciouranoite	4.00 / 4.00	4.62
Cámaraite
Canosioite		4.94
Cappelenite-(Y)	6.00 / 6.00	4.40
Carbocernaite	3.00 / 3.00	3.53
Cebaite-(Ce)	4.50 / 5.00	4.81
Cebaite-(Nd)	4.50 / 5.00	4.80
Celsian	6.00 / 6.50	3.10
Cerchiaraite-(Al)	4.50 / 4.50	3.64
Cerchiaraite-(Fe)	4.50 / 4.50	3.71
Cerchiaraite-(Mn)	4.00 / 5.00
Charoite	5.00 / 6.00	2.54
Chernykhite	3.00 / 4.00	3.14
Chromphyllite	3.00 / 3.00	2.88
Clinobarylite	6.50 / 6.50	3.97
Clinoptilolite-Na	3.50 / 4.00	2.10
Colinowensite
Cordylite-(Ce)	4.50 / 4.50	4.44
Cordylite-(La)	4.00 / 4.00	4.33
Coronadite	4.50 / 5.00	5.44
Coutinhoite	1.50 / 1.50
Curetonite	3.50 / 3.50	4.31
Cymrite	2.00 / 3.00	3.41
Dachiardite-Ca	4.00 / 4.50	2.14
Dachiardite-Na	4.00 / 5.00	2.16
Daqingshanite-(Ce)	5.00 / 5.00	3.81
Dargaite
Delindeite		3.30
Devitoite	4.00 / 4.00	4.04
Dickinsonite-(KMnNa)	3.50 / 4.00	3.42
Direnzoite	4.50 / 4.50	2.12
Diversilite-(Ce)	5.00 / 5.00	3.68
Dresserite	2.50 / 3.00	2.96
Dualite	5.00 / 5.00	2.84
Dussertite	3.50 / 3.50	3.75