1 Periodic Table
1.1 Symbol
1.2 Group Number
1.3 Period Number
1.5 Block
1.6 Element Family
1.8 CAS Number
74407357440575
7429905
54386242
1.11 Space Group Name
1.12 Space Group Number
2 Facts
2.1 Interesting Facts
- 223 Francium has the longest half life at 21.8.
- Francium metal is produced by alpha decay in 227Actinium 227.
- It is found in copper ores and from the crust of the earth.
- It is the most malleable and ductile metal.
- Gold alloys are used in Dentistry as fillings, crowning, clips, etc. It is also used as an artificial limb joints.
2.2 Sources
Formed by Decay Process, Mining
Earth's crust, Mining, Ores of metals
2.3 History
2.3.1 Who Discovered
2.3.3 Discovery
2.4 Abundance
2.4.1 Abundance In Universe
2.5.1 Abundance In Sun
~-9999 %~0.0000001 %
1E-08
0.1
2.6.1 Abundance In Meteorites
2.7.1 Abundance In Earth's Crust
3.6.1 Abundance In Oceans
3.7.1 Abundance In Humans
4 Uses
4.1 Uses & Benefits
- Francium has no known uses as it has a half life of only 22 minutes.
- Gold metal is mainly used for Jewelry, bullion, coinage, etc.
- It is used in the art, decoration, ornaments, etc. It is also used for electroplating process.
4.1.1 Industrial Uses
NA
Chemical Industry, Clothing Industry, Electrical Industry, Electronic Industry
4.1.2 Medical Uses
NA
Dentistry, Pharmaceutical Industry
4.1.3 Other Uses
NA
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues
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-30.00 Blood/mg dm-3
0
1970
4.4.1 In Bone
0.00 p.p.m.0.02 p.p.m.
0
170000
5 Physical
5.1 Melting Point
27.00 °C1,064.43 °C
27
3410
6.2 Boiling Point
677.00 °C2,807.00 °C
147
5660
6.4 Appearance
6.4.1 Physical State
6.4.2 Color
6.4.3 Luster
6.5 Hardness
6.5.1 Mohs Hardness
7.1.1 Brinell Hardness
7.2.1 Vickers Hardness
7.3 Speed of Sound
7.6 Optical Properties
7.6.1 Refractive Index
7.6.3 Reflectivity
7.7 Allotropes
7.7.1 α Allotropes
Not Available
Not Available
7.7.2 β Allotropes
Not Available
Not Available
7.7.3 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
8.4.1 Sanderson Electronegativity
8.5.2 Allred Rochow Electronegativity
8.5.4 Mulliken-Jaffe Electronegativity
9.2.2 Allen Electronegativity
9.4 Electropositivity
9.4.1 Pauling Electropositivity
9.5 Ionization Energies
9.5.1 1st Energy Level
380.00 kJ/mol890.10 kJ/mol
375.7
26130
9.5.3 2nd Energy Level
NA1,980.00 kJ/mol
710.2162
28750
9.5.4 3rd Energy Level
9.5.6 4th Energy Level
9.5.8 5th Energy Level
9.5.10 6th Energy Level
9.5.11 7th Energy level
9.6.2 8th Energy Level
9.7.2 9th Energy Level
9.7.4 10th Energy Level
9.7.6 11th Energy Level
9.7.8 12th Energy Level
9.7.10 13th Energy Level
9.7.12 14th Energy Level
9.7.14 15th Energy Level
9.7.16 16th Energy Level
9.7.18 17th Energy Level
9.7.20 18th Energy Level
9.7.21 19th Energy Level
9.7.23 20th Energy Level
9.7.24 21st Energy Level
9.7.26 22nd Energy Level
9.7.27 23rd Energy Level
9.7.29 24th Energy Level
9.7.31 25th Energy Level
9.7.32 26th Energy Level
9.7.34 27th Energy Level
9.7.36 28th Energy Level
9.7.37 29th Energy Level
9.7.39 30th Energy Level
9.8 Electrochemical Equivalent
8.32 g/amp-hr2.45 g/amp-hr
0.16812
8.3209
9.9 Electron Work Function
9.10 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility
Chemical Stability, Ionization, Solubility
10 Atomic
10.1 Atomic Number
10.2 Electron Configuration
[Rn] 7s1
[Xe] 4f14 5d10 6s1
10.3 Crystal Structure
Body Centered Cubic (BCC)
Face Centered Cubic (FCC)
10.3.1 Crystal Lattice
10.4 Atom
10.4.1 Number of Protons
10.4.4 Number of Neutrons
10.4.6 Number of Electrons
10.5 Radius of an Atom
10.5.1 Atomic Radius
10.5.3 Covalent Radius
260.00 pm144.00 pm
96
260
10.5.5 Van der Waals Radius
348.00 pm166.00 pm
139
348
10.6 Atomic Weight
223.00 amu196.97 amu
6.94
294
10.7 Atomic Volume
NA10.20 cm3/mol
1.39
71.07
10.9 Adjacent Atomic Numbers
10.9.1 Previous Element
10.9.2 Next Element
10.10 Valence Electron Potential
8.00 (-eV)43.40 (-eV)
8
392.42
10.11 Lattice Constant
NA407.82 pm
228.58
891.25
10.13 Lattice Angles
10.14 Lattice C/A Ratio
11 Mechanical
11.1 Density
11.1.1 Density At Room Temperature
1.87 g/cm319.30 g/cm3
0.534
40.7
12.1.1 Density When Liquid (at m.p.)
12.2 Tensile Strength
12.3 Viscosity
12.7 Vapor Pressure
12.7.1 Vapor Pressure at 1000 K
12.7.2 Vapor Pressure at 2000 K
NA67.00 (Pa)
2.62E-10
774
12.8 Elasticity properties
12.8.1 Shear Modulus
12.8.3 Bulk Modulus
12.8.4 Young's Modulus
12.9 Poisson Ratio
12.10 Other Mechanical Properties
13 Magnetic
13.1 Magnetic Characteristics
13.1.1 Specific Gravity
13.2.2 Magnetic Ordering
13.2.3 Permeability
13.2.4 Susceptibility
13.3 Electrical Properties
13.3.1 Electrical Property
13.3.2 Resistivity
3.00 nΩ·m2.20 nΩ·m
0.18
961
13.3.3 Electrical Conductivity
0.03 106/cm Ω0.45 106/cm Ω
0.00666
0.63
13.3.5 Electron Affinity
14 Thermal
14.1 Specific Heat
14.2 Molar Heat Capacity
NA25.42 J/mol·K
16.443
62.7
14.3 Thermal Conductivity
15.00 W/m·K318.00 W/m·K
6.3
429
14.5 Critical Temperature
14.6 Thermal Expansion
14.9 Enthalpy
14.9.1 Enthalpy of Vaporization
NA324.40 kJ/mol
7.32
799.1
14.10.1 Enthalpy of Fusion
14.10.2 Enthalpy of Atomization
71.00 kJ/mol364.00 kJ/mol
61.5
837
15.2 Standard Molar Entropy
NA47.40 J/mol.K
9.5
198.1