1 Periodic Table
1.1 Symbol
1.2 Group Number
1.4 Period Number
1.5 Block
1.6 Element Family
1.7 CAS Number
74403937440519
7429905
54386242
1.8 Space Group Name
1.9 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
2.4.5 Abundance In Sun
~0.000001 %~-9999 %
1E-08
0.1
2.4.8 Abundance In Meteorites
2.4.12 Abundance In Earth's Crust
2.5.2 Abundance In Oceans
2.6.2 Abundance In Humans
3 Uses
3.2 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.
3.2.1 Industrial Uses
Ammunition Industry, Automobile Industry, Electrical Industry, Electronic Industry
NA
3.2.2 Medical Uses
4.1.1 Other Uses
4.2 Biological Properties
4.2.1 Toxicity
4.2.2 Present in Human Body
4.2.4 In Blood
0.07 Blood/mg dm-30.00 Blood/mg dm-3
0
1970
4.2.5 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
5.2 Boiling Point
1,140.00 °C3,110.00 °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
5.4.3 Brinell Hardness
5.4.7 Vickers Hardness
5.5 Speed of Sound
5.7 Optical Properties
5.7.1 Refractive Index
5.7.3 Reflectivity
5.8 Allotropes
5.8.1 α Allotropes
Not Available
Not Available
5.8.2 β Allotropes
Not Available
Not Available
5.8.3 γ Allotropes
Not Available
Not Available
6 Chemical
6.1 Chemical Formula
6.2 Isotopes
6.2.1 Known Isotopes
6.3 Electronegativity
6.3.1 Pauling Electronegativity
6.3.4 Sanderson Electronegativity
6.4.1 Allred Rochow Electronegativity
6.4.3 Mulliken-Jaffe Electronegativity
6.4.5 Allen Electronegativity
6.7 Electropositivity
6.7.1 Pauling Electropositivity
6.8 Ionization Energies
6.8.1 1st Energy Level
502.90 kJ/mol581.00 kJ/mol
375.7
26130
6.8.2 2nd Energy Level
965.20 kJ/mol1,196.00 kJ/mol
710.2162
28750
6.11.1 3rd Energy Level
3,600.00 kJ/mol2,026.00 kJ/mol
1600
34230
6.12.1 4th Energy Level
NA3,550.00 kJ/mol
2780
37066
7.1.1 5th Energy Level
7.3.1 6th Energy Level
7.3.2 7th Energy level
8.2.2 8th Energy Level
8.2.3 9th Energy Level
8.2.4 10th Energy Level
8.2.7 11th Energy Level
8.2.8 12th Energy Level
8.3.2 13th Energy Level
8.4.1 14th Energy Level
8.6.2 15th Energy Level
8.6.3 16th Energy Level
8.6.6 17th Energy Level
8.6.8 18th Energy Level
8.8.1 19th Energy Level
8.8.2 20th Energy Level
8.8.4 21st Energy Level
8.9.1 22nd Energy Level
8.9.3 23rd Energy Level
8.11.1 24th Energy Level
8.11.2 25th Energy Level
8.13.1 26th Energy Level
8.13.2 27th Energy Level
9.1.2 28th Energy Level
9.3.1 29th Energy Level
10.1.3 30th Energy Level
10.2 Electrochemical Equivalent
2.56 g/amp-hr3.07 g/amp-hr
0.16812
8.3209
10.3 Electron Work Function
10.6 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility
Ionization, Radioactive Isotopes
11 Atomic
11.1 Atomic Number
11.3 Electron Configuration
[Xe] 6s2
[Rn] 5f7 6d1 7s2
11.4 Crystal Structure
Body Centered Cubic (BCC)
Double Hexagonal Close Packed (DHCP)
11.5.2 Crystal Lattice
11.6 Atom
11.6.1 Number of Protons
11.6.4 Number of Neutrons
11.7.2 Number of Electrons
12.2 Radius of an Atom
12.2.1 Atomic Radius
222.00 pm174.00 pm
112
265
12.3.1 Covalent Radius
215.00 pm169.00 pm
96
260
12.4.2 Van der Waals Radius
268.00 pm200.00 pm
139
348
12.5 Atomic Weight
137.33 amu247.00 amu
6.94
294
12.8 Atomic Volume
39.24 cm3/mol18.28 cm3/mol
1.39
71.07
13.2 Adjacent Atomic Numbers
13.2.1 Previous Element
13.2.2 Next Element
13.3 Valence Electron Potential
21.30 (-eV)44.50 (-eV)
8
392.42
13.5 Lattice Constant
502.80 pmNA
228.58
891.25
13.6 Lattice Angles
13.7 Lattice C/A Ratio
14 Mechanical
14.1 Density
14.1.1 Density At Room Temperature
3.51 g/cm313.51 g/cm3
0.534
40.7
14.1.3 Density When Liquid (at m.p.)
3.34 g/cm313.85 g/cm3
0.512
20
14.3 Tensile Strength
14.4 Viscosity
14.5 Vapor Pressure
14.5.1 Vapor Pressure at 1000 K
15.1.1 Vapor Pressure at 2000 K
15.3 Elasticity properties
15.3.1 Shear Modulus
15.4.1 Bulk Modulus
15.5.1 Young's Modulus
15.7 Poisson Ratio
15.8 Other Mechanical Properties
16 Magnetic
16.1 Magnetic Characteristics
16.1.1 Specific Gravity
16.2.2 Magnetic Ordering
Paramagnetic
Antiferromagnetic
16.2.3 Permeability
16.2.4 Susceptibility
16.3 Electrical Properties
16.3.1 Electrical Property
16.3.2 Resistivity
332.00 nΩ·m1.25 nΩ·m
0.18
961
16.3.4 Electrical Conductivity
0.03 106/cm ΩNA
0.00666
0.63
16.3.5 Electron Affinity
17 Thermal
17.1 Specific Heat
17.2 Molar Heat Capacity
28.07 J/mol·KNA
16.443
62.7
17.3 Thermal Conductivity
17.4 Critical Temperature
17.5 Thermal Expansion
17.6 Enthalpy
17.6.1 Enthalpy of Vaporization
140.00 kJ/molNA
7.32
799.1
17.6.2 Enthalpy of Fusion
7.66 kJ/mol15.00 kJ/mol
2.1
35.23
17.6.3 Enthalpy of Atomization
17.7 Standard Molar Entropy
62.50 J/mol.KNA
9.5
198.1