1 Periodic Table
1.1 Symbol
1.2 Group Number
2.3 Period Number
2.4 Block
2.5 Element Family
2.6 CAS Number
74404067440735
7429905
54386242
3.2 Space Group Name
3.3 Space Group Number
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.
- 223 Francium has the longest half life at 21.8.
- Francium metal is produced by alpha decay in 227Actinium 227.
4.2 Sources
Bombarding Americium with Alpha Particles.
Formed by Decay Process, Mining
4.3 History
4.3.1 Who Discovered
Lawrence Berkeley National Laboratory
Marguerite Perey
4.3.2 Discovery
4.4 Abundance
4.4.1 Abundance In Universe
4.6.2 Abundance In Sun
~-9999 %~-9999 %
1E-08
0.1
4.6.4 Abundance In Meteorites
4.6.6 Abundance In Earth's Crust
4.6.7 Abundance In Oceans
4.7.1 Abundance In Humans
5 Uses
5.1 Uses & Benefits
- This metal is very rare and has no commercial uses.
- Francium has no known uses as it has a half life of only 22 minutes.
5.1.1 Industrial Uses
5.1.2 Medical Uses
5.1.3 Other Uses
5.2 Biological Properties
5.2.1 Toxicity
5.2.2 Present in Human Body
5.2.3 In Blood
0.00 Blood/mg dm-30.00 Blood/mg dm-3
0
1970
5.3.2 In Bone
0.00 p.p.m.0.00 p.p.m.
0
170000
6 Physical
6.1 Melting Point
986.00 °C27.00 °C
27
3410
6.2 Boiling Point
2,627.00 °C677.00 °C
147
5660
7.3 Appearance
7.3.1 Physical State
7.3.2 Color
7.3.3 Luster
7.4 Hardness
7.4.1 Mohs Hardness
7.4.2 Brinell Hardness
7.5.2 Vickers Hardness
7.6 Speed of Sound
7.7 Optical Properties
7.7.1 Refractive Index
7.7.2 Reflectivity
7.8 Allotropes
7.8.1 α Allotropes
Not Available
Not Available
7.8.2 β Allotropes
Not Available
Not Available
7.8.3 γ Allotropes
Not Available
Not Available
8 Chemical
8.1 Chemical Formula
8.2 Isotopes
8.2.1 Known Isotopes
8.3 Electronegativity
8.3.1 Pauling Electronegativity
8.3.3 Sanderson Electronegativity
8.3.4 Allred Rochow Electronegativity
8.4.2 Mulliken-Jaffe Electronegativity
8.5.3 Allen Electronegativity
8.6 Electropositivity
8.6.1 Pauling Electropositivity
8.7 Ionization Energies
8.7.1 1st Energy Level
601.00 kJ/mol380.00 kJ/mol
375.7
26130
8.7.3 2nd Energy Level
1,186.00 kJ/molNA
710.2162
28750
8.7.5 3rd Energy Level
2,152.00 kJ/molNA
1600
34230
8.7.8 4th Energy Level
3,434.00 kJ/molNA
2780
37066
8.7.11 5th Energy Level
8.7.13 6th Energy Level
8.7.15 7th Energy level
8.7.17 8th Energy Level
8.7.19 9th Energy Level
8.7.21 10th Energy Level
8.7.23 11th Energy Level
8.7.25 12th Energy Level
8.7.27 13th Energy Level
8.7.29 14th Energy Level
8.7.31 15th Energy Level
8.7.33 16th Energy Level
8.7.36 17th Energy Level
8.7.38 18th Energy Level
8.7.40 19th Energy Level
8.7.43 20th Energy Level
8.7.45 21st Energy Level
8.7.46 22nd Energy Level
8.7.48 23rd Energy Level
8.7.50 24th Energy Level
8.7.52 25th Energy Level
8.7.53 26th Energy Level
8.8.1 27th Energy Level
8.8.2 28th Energy Level
8.9.1 29th Energy Level
8.9.2 30th Energy Level
9.2 Electrochemical Equivalent
3.07 g/amp-hr8.32 g/amp-hr
0.16812
8.3209
9.6 Electron Work Function
9.7 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Ionization, Radioactive Isotopes, Radioactivity, Solubility
10 Atomic
10.1 Atomic Number
10.2 Electron Configuration
10.3 Crystal Structure
Double Hexagonal Close Packed (DHCP)
Body Centered Cubic (BCC)
10.3.1 Crystal Lattice
10.4 Atom
10.4.1 Number of Protons
10.5.2 Number of Neutrons
10.5.4 Number of Electrons
10.6 Radius of an Atom
10.6.1 Atomic Radius
10.7.1 Covalent Radius
10.8.1 Van der Waals Radius
10.9 Atomic Weight
247.00 amu223.00 amu
6.94
294
10.12 Atomic Volume
10.14 Adjacent Atomic Numbers
10.14.1 Previous Element
10.14.2 Next Element
10.15 Valence Electron Potential
45.50 (-eV)8.00 (-eV)
8
392.42
11.2 Lattice Constant
341.60 pmNA
228.58
891.25
11.3 Lattice Angles
11.4 Lattice C/A Ratio
12 Mechanical
12.1 Density
12.1.1 Density At Room Temperature
14.78 g/cm31.87 g/cm3
0.534
40.7
12.2.1 Density When Liquid (at m.p.)
12.5 Tensile Strength
1.2 Viscosity
1.5 Vapor Pressure
1.5.1 Vapor Pressure at 1000 K
1.7.3 Vapor Pressure at 2000 K
1.8 Elasticity properties
1.8.1 Shear Modulus
1.9.3 Bulk Modulus
2.2.1 Young's Modulus
2.5 Poisson Ratio
2.7 Other Mechanical Properties
3 Magnetic
3.1 Magnetic Characteristics
3.2.1 Specific Gravity
3.3.3 Magnetic Ordering
Paramagnetic
Paramagnetic
3.3.4 Permeability
3.3.6 Susceptibility
3.4 Electrical Properties
3.4.1 Electrical Property
3.4.2 Resistivity
3.4.4 Electrical Conductivity
NA0.03 106/cm Ω
0.00666
0.63
4.1.1 Electron Affinity
5 Thermal
5.1 Specific Heat
5.2 Molar Heat Capacity
5.4 Thermal Conductivity
10.00 W/m·K15.00 W/m·K
6.3
429
5.7 Critical Temperature
5.8 Thermal Expansion
5.9 Enthalpy
5.9.1 Enthalpy of Vaporization
5.10.1 Enthalpy of Fusion
5.10.2 Enthalpy of Atomization
5.11 Standard Molar Entropy