1 Periodic Table
1.1 Symbol
1.2 Group Number
1.4 Period Number
1.5 Block
1.6 Element Family
Lanthanide
Alkaline Earth
1.7 CAS Number
74401227440393
7429905
54386242
1.9 Space Group Name
1.10 Space Group Number
3 Facts
3.1 Interesting Facts
- Promethium metal found in Pitchblende.
- Promethium metal is highly radioactive metal.
- Barium oxidizes very easily in the air.
- All toxic compounds of Barium can easily dissolve in water.
- Barium carbonate is used to produce a Rat poison and its other compound Barium nitrate is used in fireworks to produce green color.
3.2 Sources
Found in Minerals, Mining
Earth's crust, Found in Minerals, Mining, Ores of Minerals
3.3 History
3.3.1 Who Discovered
Chien Shiung Wu, Emilio Segrè, Hans Bethe
Carl Wilhelm Scheele
3.3.2 Discovery
3.4 Abundance
3.4.1 Abundance In Universe
3.5.3 Abundance In Sun
~-9999 %~0.000001 %
1E-08
0.1
3.5.6 Abundance In Meteorites
3.5.8 Abundance In Earth's Crust
3.5.12 Abundance In Oceans
3.5.14 Abundance In Humans
4 Uses
4.1 Uses & Benefits
- It is used for research purpose. Very small amount of this metal is used in atomic batteries.
- Its radioactive decay is used for a phosphor to give off light. The light emitted is converted into electricity.
- It is sued in chemical paint manufacturing and glass manufacturing.
-
Compounds of this metal are toxic; but still the barium sulfate is insoluble and given to patients suffering from digestive disorder.
4.1.1 Industrial Uses
NA
Ammunition Industry, Automobile Industry, Electrical Industry, Electronic Industry
4.1.2 Medical Uses
4.1.3 Other Uses
4.2 Biological Properties
4.2.1 Toxicity
4.2.2 Present in Human Body
4.2.3 In Blood
0.00 Blood/mg dm-30.07 Blood/mg dm-3
0
1970
4.3.3 In Bone
5 Physical
5.1 Melting Point
1,042.00 °C725.00 °C
27
3410
5.2 Boiling Point
3,000.00 °C1,140.00 °C
147
5660
5.3 Appearance
5.3.1 Physical State
5.3.2 Color
5.3.3 Luster
5.4 Hardness
5.4.1 Mohs Hardness
5.4.6 Brinell Hardness
5.4.9 Vickers Hardness
5.5 Speed of Sound
5.7 Optical Properties
5.7.1 Refractive Index
5.7.3 Reflectivity
5.9 Allotropes
5.9.1 α Allotropes
Not Available
Not Available
5.9.2 β Allotropes
Not Available
Not Available
5.9.3 γ Allotropes
Not Available
Not Available
6 Chemical
6.1 Chemical Formula
6.2 Isotopes
6.2.1 Known Isotopes
6.4 Electronegativity
6.4.1 Pauling Electronegativity
6.4.3 Sanderson Electronegativity
6.4.12 Allred Rochow Electronegativity
6.4.14 Mulliken-Jaffe Electronegativity
6.4.16 Allen Electronegativity
6.5 Electropositivity
6.5.1 Pauling Electropositivity
6.6 Ionization Energies
6.6.1 1st Energy Level
540.00 kJ/mol502.90 kJ/mol
375.7
26130
6.6.3 2nd Energy Level
1,050.00 kJ/mol965.20 kJ/mol
710.2162
28750
6.6.5 3rd Energy Level
2,150.00 kJ/mol3,600.00 kJ/mol
1600
34230
6.6.8 4th Energy Level
3,970.00 kJ/molNA
2780
37066
6.6.10 5th Energy Level
6.7.1 6th Energy Level
6.7.2 7th Energy level
6.8.1 8th Energy Level
7.1.1 9th Energy Level
7.1.2 10th Energy Level
7.4.2 11th Energy Level
7.4.4 12th Energy Level
7.4.6 13th Energy Level
7.4.7 14th Energy Level
7.5.3 15th Energy Level
7.5.4 16th Energy Level
7.5.6 17th Energy Level
7.6.1 18th Energy Level
7.7.1 19th Energy Level
7.7.2 20th Energy Level
7.9.1 21st Energy Level
7.9.2 22nd Energy Level
7.10.1 23rd Energy Level
7.12.1 24th Energy Level
7.12.2 25th Energy Level
8.1.2 26th Energy Level
8.1.3 27th Energy Level
8.1.5 28th Energy Level
8.1.6 29th Energy Level
8.2.1 30th Energy Level
8.4 Electrochemical Equivalent
1.80 g/amp-hr2.56 g/amp-hr
0.16812
8.3209
8.6 Electron Work Function
8.8 Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility
Ionization, Radioactive Isotopes, Radioactivity, Solubility
9 Atomic
9.1 Atomic Number
9.2 Electron Configuration
9.3 Crystal Structure
Double Hexagonal Close Packed (DHCP)
Body Centered Cubic (BCC)
9.3.1 Crystal Lattice
9.4 Atom
9.4.1 Number of Protons
9.4.3 Number of Neutrons
9.5.1 Number of Electrons
10.2 Radius of an Atom
10.2.1 Atomic Radius
183.00 pm222.00 pm
112
265
10.2.4 Covalent Radius
199.00 pm215.00 pm
96
260
10.2.6 Van der Waals Radius
236.00 pm268.00 pm
139
348
10.4 Atomic Weight
145.00 amu137.33 amu
6.94
294
10.5 Atomic Volume
22.39 cm3/mol39.24 cm3/mol
1.39
71.07
10.6 Adjacent Atomic Numbers
10.6.1 Previous Element
10.6.2 Next Element
10.7 Valence Electron Potential
44.10 (-eV)21.30 (-eV)
8
392.42
10.8 Lattice Constant
NA502.80 pm
228.58
891.25
11.2 Lattice Angles
11.3 Lattice C/A Ratio
12 Mechanical
12.1 Density
12.1.1 Density At Room Temperature
7.26 g/cm33.51 g/cm3
0.534
40.7
12.2.1 Density When Liquid (at m.p.)
12.4 Tensile Strength
12.5 Viscosity
12.7 Vapor Pressure
12.7.1 Vapor Pressure at 1000 K
12.8.2 Vapor Pressure at 2000 K
12.9 Elasticity properties
12.9.1 Shear Modulus
18.00 GPa4.90 GPa
1.3
222
12.9.4 Bulk Modulus
33.00 GPa9.60 GPa
1.6
462
12.10.1 Young's Modulus
46.00 GPa13.00 GPa
1.7
528
12.11 Poisson Ratio
12.12 Other Mechanical Properties
13 Magnetic
13.1 Magnetic Characteristics
13.1.1 Specific Gravity
13.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
13.1.3 Permeability
13.1.4 Susceptibility
13.2 Electrical Properties
13.2.1 Electrical Property
13.2.2 Resistivity
0.75 nΩ·m332.00 nΩ·m
0.18
961
13.2.3 Electrical Conductivity
NA0.03 106/cm Ω
0.00666
0.63
13.2.4 Electron Affinity
50.00 kJ/mol13.95 kJ/mol
0
222.8
14 Thermal
14.1 Specific Heat
0.18 J/(kg K)0.20 J/(kg K)
0.11
3.6
14.2 Molar Heat Capacity
NA28.07 J/mol·K
16.443
62.7
14.3 Thermal Conductivity
17.90 W/m·K18.40 W/m·K
6.3
429
14.4 Critical Temperature
14.5 Thermal Expansion
9.00 µm/(m·K)20.60 µm/(m·K)
4.5
97
14.6 Enthalpy
14.6.1 Enthalpy of Vaporization
NA140.00 kJ/mol
7.32
799.1
1.1.2 Enthalpy of Fusion
7.50 kJ/mol7.66 kJ/mol
2.1
35.23
1.1.3 Enthalpy of Atomization
310.00 kJ/mol175.70 kJ/mol
61.5
837
1.3 Standard Molar Entropy
NA62.50 J/mol.K
9.5
198.1