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Berkelium
Berkelium

Barium
Barium



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Berkelium
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Barium

Berkelium Barium Comparison

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1 Periodic Table
1.1 Symbol
Bk
Ba
1.2 Group Number
NA2
Gadolinium Metal
0 17
1.4 Period Number
76
Lithium Metal
2 7
2.9 Block
f block
s block
2.10 Element Family
Actinide
Alkaline Earth
2.11 CAS Number
74404067440393
Aluminium Metal
7429905 54386242
3.7 Space Group Name
P63/mmc
Im_ 3m
3.9 Space Group Number
194.00229.00
Plutonium Metal
11 229
4 Facts
4.1 Interesting Facts
  • X-ray Diffraction- different compounds of Berkelium metals are identified using it.
    Commercial uses of Berkelium metal are not yet discovered.
  • 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.
4.3 Sources
Bombarding Americium with Alpha Particles.
Earth's crust, Found in Minerals, Mining, Ores of Minerals
4.5 History
4.5.1 Who Discovered
Lawrence Berkeley National Laboratory
Carl Wilhelm Scheele
4.5.2 Discovery
In 1949
In 1772
4.6 Abundance
4.6.1 Abundance In Universe
NA1 * 10-6 %
Thallium Metal
5E-09 0.11
2.4.2 Abundance In Sun
~-9999 %~0.000001 %
Beryllium Metal
1E-08 0.1
2.6.6 Abundance In Meteorites
NA0.00 %
Gold Metal
1.7E-07 22
3.2.7 Abundance In Earth's Crust
NA0.03 %
Radium Metal
9.9E-12 8.1
4.1.1 Abundance In Oceans
NA0.00 %
Protactinium Metal
2E-23 1.1
5.2.4 Abundance In Humans
NA0.00 %
Radium Metal
1E-13 1.4
6 Uses
6.1 Uses & Benefits
  • This metal is very rare and has no commercial uses.
  • 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.
6.1.1 Industrial Uses
NA
Ammunition Industry, Automobile Industry, Electrical Industry, Electronic Industry
6.1.2 Medical Uses
NA
NA
6.1.3 Other Uses
NA
Alloys
6.2 Biological Properties
6.2.1 Toxicity
Unknown
Low Toxic
6.2.2 Present in Human Body
6.2.3 In Blood
0.00 Blood/mg dm-30.07 Blood/mg dm-3
Plutonium Metal
0 1970
8.2.2 In Bone
0.00 p.p.m.70.00 p.p.m.
Plutonium Metal
0 170000
9 Physical
9.1 Melting Point
986.00 °C725.00 °C
Francium Metal
27 3410
10.4 Boiling Point
2,627.00 °C1,140.00 °C
Flerovium Metal
147 5660
10.7 Appearance
10.7.1 Physical State
Solid
Solid
10.7.2 Color
Silver
Silvery Gray
10.7.3 Luster
Metallic
NA
10.8 Hardness
10.8.1 Mohs Hardness
NA1.25
Cesium Metal
0.2 8.5
10.11.2 Brinell Hardness
NANA
Cesium Metal
0.14 3490
11.3.1 Vickers Hardness
NANA
Palladium Metal
121 3430
11.5 Speed of Sound
NA1,620.00 m/s
Thallium Metal
818 16200
12.4 Optical Properties
12.4.1 Refractive Index
NANA
Mercury Metal
1.000933 1.7229
12.4.2 Reflectivity
NANA
Molybdenum Metal
58 97
12.7 Allotropes
12.7.1 α Allotropes
Not Available
Not Available
12.7.2 β Allotropes
Not Available
Not Available
12.7.3 γ Allotropes
Not Available
Not Available
13 Chemical
13.1 Chemical Formula
Bk
Ba
13.2 Isotopes
13.2.1 Known Isotopes
1437
Tennessine Metal
0 38
13.3 Electronegativity
13.3.1 Pauling Electronegativity
1.300.89
Francium Metal
0.7 2.54
14.2.3 Sanderson Electronegativity
NA0.68
Cesium Metal
0.22 2.56
14.5.2 Allred Rochow Electronegativity
1.200.97
Cesium Metal
0.86 1.82
14.5.6 Mulliken-Jaffe Electronegativity
NA0.88
Cesium Metal
0.62 2.48
14.6.2 Allen Electronegativity
2.700.88
Cesium Metal
0.659 2.7
14.8 Electropositivity
14.8.1 Pauling Electropositivity
2.703.11
Gold Metal
1.46 3.3
14.9 Ionization Energies
14.9.1 1st Energy Level
601.00 kJ/mol502.90 kJ/mol
Cesium Metal
375.7 26130
14.10.3 2nd Energy Level
1,186.00 kJ/mol965.20 kJ/mol
Ruthenium Metal
710.2162 28750
14.11.4 3rd Energy Level
2,152.00 kJ/mol3,600.00 kJ/mol
Osmium Metal
1600 34230
14.11.10 4th Energy Level
3,434.00 kJ/molNA
Thorium Metal
2780 37066
14.11.14 5th Energy Level
NANA
Dubnium Metal
4305.2 97510
14.11.18 6th Energy Level
NANA
Seaborgium Metal
5715.8 105800
14.11.22 7th Energy level
NANA
Bohrium Metal
7226.8 114300
14.11.25 8th Energy Level
NANA
Hassium Metal
8857.4 125300
14.11.28 9th Energy Level
NANA
Yttrium Metal
14110 134700
14.11.32 10th Energy Level
NANA
Strontium Metal
17100 144300
14.11.37 11th Energy Level
NANA
Yttrium Metal
19900 169988
14.11.41 12th Energy Level
NANA
Molybdenum Metal
22219 189368
14.11.44 13th Energy Level
NANA
Molybdenum Metal
26930 76015
14.11.48 14th Energy Level
NANA
Molybdenum Metal
29196 86450
14.11.53 15th Energy Level
NANA
Manganese Metal
41987 97510
14.11.57 16th Energy Level
NANA
Iron Metal
47206 109480
14.11.60 17th Energy Level
NANA
Cobalt Metal
52737 122200
14.11.65 18th Energy Level
NANA
Nickel Metal
58570 134810
14.11.69 19th Energy Level
NANA
Copper Metal
64702 148700
14.11.73 20th Energy Level
NANA
Molybdenum Metal
80400 171200
14.11.77 21st Energy Level
NANA
Molybdenum Metal
87000 179100
14.11.80 22nd Energy Level
NANA
Molybdenum Metal
93400 184900
14.11.83 23rd Energy Level
NANA
Molybdenum Metal
98420 198800
14.12.2 24th Energy Level
NANA
Molybdenum Metal
104400 195200
14.13.3 25th Energy Level
NANA
Molybdenum Metal
121900 121900
15.1.2 26th Energy Level
NANA
Molybdenum Metal
127700 127700
15.4.2 27th Energy Level
NANA
Molybdenum Metal
133800 133800
15.4.4 28th Energy Level
NANA
Molybdenum Metal
139800 139800
15.4.7 29th Energy Level
NANA
Molybdenum Metal
148100 148100
15.4.8 30th Energy Level
NANA
Molybdenum Metal
154500 154500
15.5 Electrochemical Equivalent
3.07 g/amp-hr2.56 g/amp-hr
Beryllium Metal
0.16812 8.3209
15.7 Electron Work Function
NA2.70 eV
Cesium Metal
2.14 5.65
15.9 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Ionization, Radioactive Isotopes, Radioactivity, Solubility
16 Atomic
16.1 Atomic Number
9756
Lithium Metal
3 117
16.3 Electron Configuration
[Rn] 5f9 7s2
[Xe] 6s2
16.4 Crystal Structure
Double Hexagonal Close Packed (DHCP)
Body Centered Cubic (BCC)
16.4.1 Crystal Lattice
16.5 Atom
16.5.1 Number of Protons
9756
Lithium Metal
3 117
17.2.1 Number of Neutrons
15081
Lithium Metal
4 184
17.4.1 Number of Electrons
9756
Lithium Metal
3 117
17.10 Radius of an Atom
17.10.1 Atomic Radius
170.00 pm222.00 pm
Beryllium Metal
112 265
17.13.1 Covalent Radius
NA215.00 pm
Beryllium Metal
96 260
1.2.1 Van der Waals Radius
NA268.00 pm
Zinc Metal
139 348
1.7 Atomic Weight
247.00 amu137.33 amu
Lithium Metal
6.94 294
1.13 Atomic Volume
NA39.24 cm3/mol
Manganese Metal
1.39 71.07
1.16 Adjacent Atomic Numbers
1.16.1 Previous Element
1.16.2 Next Element
1.17 Valence Electron Potential
45.50 (-eV)21.30 (-eV)
Francium Metal
8 392.42
1.20 Lattice Constant
341.60 pm502.80 pm
Beryllium Metal
228.58 891.25
1.24 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
1.25 Lattice C/A Ratio
NANA
Beryllium Metal
1.567 1.886
3 Mechanical
3.1 Density
3.1.1 Density At Room Temperature
14.78 g/cm33.51 g/cm3
Lithium Metal
0.534 40.7
3.7.3 Density When Liquid (at m.p.)
13.25 g/cm33.34 g/cm3
Lithium Metal
0.512 20
3.12 Tensile Strength
NANA
Indium Metal
2.5 11000
5.4 Viscosity
NANA
Mercury Metal
0.001526 0.001526
6.2 Vapor Pressure
6.2.1 Vapor Pressure at 1000 K
NA7.11 (Pa)
Cerium Metal
2.47E-11 121
6.5.1 Vapor Pressure at 2000 K
NANA
Tungsten Metal
2.62E-10 774
6.9 Elasticity properties
6.9.2 Shear Modulus
NA4.90 GPa
Potassium Metal
1.3 222
6.12.3 Bulk Modulus
NA9.60 GPa
Cesium Metal
1.6 462
6.14.3 Young's Modulus
NA13.00 GPa
Cesium Metal
1.7 528
7.2 Poisson Ratio
NANA
Beryllium Metal
0.032 0.47
1.2 Other Mechanical Properties
NA
NA
2 Magnetic
2.1 Magnetic Characteristics
2.1.1 Specific Gravity
14.003.62
Lithium Metal
0.53 4500
2.2.5 Magnetic Ordering
Paramagnetic
Paramagnetic
2.2.6 Permeability
NANA
Bismuth Metal
1.25643E-06 0.0063
2.4.2 Susceptibility
NANA
Bismuth Metal
-0.000166 200000
3.2 Electrical Properties
3.2.1 Electrical Property
Conductor
Superconductor
3.2.2 Resistivity
NA332.00 nΩ·m
Thallium Metal
0.18 961
3.6.1 Electrical Conductivity
NA0.03 106/cm Ω
Plutonium Metal
0.00666 0.63
4.2.1 Electron Affinity
NA13.95 kJ/mol
Mercury Metal
0 222.8
5 Thermal
5.1 Specific Heat
NA0.20 J/(kg K)
Americium Metal
0.11 3.6
5.2 Molar Heat Capacity
NA28.07 J/mol·K
Beryllium Metal
16.443 62.7
5.5 Thermal Conductivity
10.00 W/m·K18.40 W/m·K
Neptunium Metal
6.3 429
5.6 Critical Temperature
NANA
Ytterbium Metal
26.3 3223
5.7 Thermal Expansion
NA20.60 µm/(m·K)
Tungsten Metal
4.5 97
6.2 Enthalpy
6.2.1 Enthalpy of Vaporization
NA140.00 kJ/mol
Zinc Metal
7.32 799.1
6.3.1 Enthalpy of Fusion
NA7.66 kJ/mol
Cesium Metal
2.1 35.23
6.4.1 Enthalpy of Atomization
NA175.70 kJ/mol
Mercury Metal
61.5 837
6.6 Standard Molar Entropy
NA62.50 J/mol.K
Beryllium Metal
9.5 198.1