1 Periodic Table
1.1 Symbol
1.2 Group Number
1.7 Period Number
1.8 Block
1.9 Element Family
1.10 CAS Number
74403937440519
7429905
54386242
1.11 Space Group Name
1.12 Space Group Number
2 Facts
2.1 Interesting Facts
- 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.
- Curium metal does not occur free in nature.
- Curium metal is a synthetically produced metal.
2.2 Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals
Bombarding Plutonium with Helium Ions
2.3 History
2.3.1 Who Discovered
Carl Wilhelm Scheele
Glenn T. Seaborg, Ralph A. James, Albert Ghiorso
2.3.2 Discovery
2.4 Abundance
2.4.1 Abundance In Universe
2.5.2 Abundance In Sun
~0.000001 %~-9999 %
1E-08
0.1
2.5.3 Abundance In Meteorites
2.8.3 Abundance In Earth's Crust
2.9.1 Abundance In Oceans
2.11.1 Abundance In Humans
4 Uses
4.1 Uses & Benefits
- 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.
- Curium metal is used to provide power to electrical equipment for space missions.
4.1.1 Industrial Uses
Ammunition Industry, Automobile Industry, Electrical Industry, Electronic Industry
NA
4.1.2 Medical Uses
4.1.4 Other Uses
4.2 Biological Properties
4.2.1 Toxicity
4.2.2 Present in Human Body
4.2.3 In Blood
0.07 Blood/mg dm-30.00 Blood/mg dm-3
0
1970
4.2.6 In Bone
70.00 p.p.m.0.00 p.p.m.
0
170000
5 Physical
5.1 Melting Point
725.00 °C1,340.00 °C
27
3410
5.3 Boiling Point
1,140.00 °C3,110.00 °C
147
5660
5.7 Appearance
5.7.1 Physical State
5.7.2 Color
5.7.3 Luster
5.8 Hardness
5.8.1 Mohs Hardness
5.8.4 Brinell Hardness
5.11.2 Vickers Hardness
5.12 Speed of Sound
5.14 Optical Properties
5.14.1 Refractive Index
5.14.4 Reflectivity
5.15 Allotropes
5.15.1 α Allotropes
Not Available
Not Available
5.15.2 β Allotropes
Not Available
Not Available
5.15.3 γ Allotropes
Not Available
Not Available
6 Chemical
6.1 Chemical Formula
6.2 Isotopes
6.2.1 Known Isotopes
6.6 Electronegativity
6.6.1 Pauling Electronegativity
8.1.3 Sanderson Electronegativity
8.2.1 Allred Rochow Electronegativity
8.2.4 Mulliken-Jaffe Electronegativity
8.3.3 Allen Electronegativity
8.6 Electropositivity
8.6.1 Pauling Electropositivity
8.7 Ionization Energies
8.7.1 1st Energy Level
502.90 kJ/mol581.00 kJ/mol
375.7
26130
8.8.1 2nd Energy Level
965.20 kJ/mol1,196.00 kJ/mol
710.2162
28750
10.2.2 3rd Energy Level
3,600.00 kJ/mol2,026.00 kJ/mol
1600
34230
10.2.3 4th Energy Level
NA3,550.00 kJ/mol
2780
37066
10.4.1 5th Energy Level
10.7.1 6th Energy Level
10.8.2 7th Energy level
10.9.1 8th Energy Level
10.10.1 9th Energy Level
10.11.2 10th Energy Level
10.11.6 11th Energy Level
10.13.2 12th Energy Level
11.2.4 13th Energy Level
11.2.7 14th Energy Level
11.4.3 15th Energy Level
11.4.4 16th Energy Level
11.5.2 17th Energy Level
11.7.1 18th Energy Level
12.1.1 19th Energy Level
12.3.1 20th Energy Level
12.6.1 21st Energy Level
12.8.1 22nd Energy Level
13.1.2 23rd Energy Level
13.2.3 24th Energy Level
13.2.6 25th Energy Level
13.2.7 26th Energy Level
13.4.1 27th Energy Level
13.4.2 28th Energy Level
13.5.1 29th Energy Level
13.6.2 30th Energy Level
13.7 Electrochemical Equivalent
2.56 g/amp-hr3.07 g/amp-hr
0.16812
8.3209
13.9 Electron Work Function
13.10 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility
Ionization, Radioactive Isotopes
14 Atomic
14.1 Atomic Number
14.2 Electron Configuration
[Xe] 6s2
[Rn] 5f7 6d1 7s2
14.3 Crystal Structure
Body Centered Cubic (BCC)
Double Hexagonal Close Packed (DHCP)
14.3.1 Crystal Lattice
14.4 Atom
14.4.1 Number of Protons
14.4.3 Number of Neutrons
14.5.1 Number of Electrons
15.2 Radius of an Atom
15.2.1 Atomic Radius
222.00 pm174.00 pm
112
265
15.2.4 Covalent Radius
215.00 pm169.00 pm
96
260
15.2.6 Van der Waals Radius
268.00 pm200.00 pm
139
348
15.4 Atomic Weight
137.33 amu247.00 amu
6.94
294
15.5 Atomic Volume
39.24 cm3/mol18.28 cm3/mol
1.39
71.07
15.6 Adjacent Atomic Numbers
15.6.1 Previous Element
15.6.2 Next Element
15.7 Valence Electron Potential
21.30 (-eV)44.50 (-eV)
8
392.42
15.8 Lattice Constant
502.80 pmNA
228.58
891.25
16.2 Lattice Angles
16.3 Lattice C/A Ratio
17 Mechanical
17.1 Density
17.1.1 Density At Room Temperature
3.51 g/cm313.51 g/cm3
0.534
40.7
17.2.1 Density When Liquid (at m.p.)
3.34 g/cm313.85 g/cm3
0.512
20
17.4 Tensile Strength
17.6 Viscosity
17.7 Vapor Pressure
17.7.1 Vapor Pressure at 1000 K
17.8.1 Vapor Pressure at 2000 K
17.10 Elasticity properties
17.10.1 Shear Modulus
17.10.3 Bulk Modulus
17.10.5 Young's Modulus
17.12 Poisson Ratio
17.13 Other Mechanical Properties
18 Magnetic
18.1 Magnetic Characteristics
18.1.1 Specific Gravity
18.1.2 Magnetic Ordering
Paramagnetic
Antiferromagnetic
18.1.3 Permeability
18.1.4 Susceptibility
18.2 Electrical Properties
18.2.1 Electrical Property
18.2.2 Resistivity
332.00 nΩ·m1.25 nΩ·m
0.18
961
18.2.3 Electrical Conductivity
0.03 106/cm ΩNA
0.00666
0.63
18.2.4 Electron Affinity
19 Thermal
19.1 Specific Heat
19.2 Molar Heat Capacity
28.07 J/mol·KNA
16.443
62.7
19.3 Thermal Conductivity
19.4 Critical Temperature
19.5 Thermal Expansion
19.6 Enthalpy
19.6.1 Enthalpy of Vaporization
140.00 kJ/molNA
7.32
799.1
19.6.2 Enthalpy of Fusion
7.66 kJ/mol15.00 kJ/mol
2.1
35.23
19.6.3 Enthalpy of Atomization
19.7 Standard Molar Entropy
62.50 J/mol.KNA
9.5
198.1