1 Periodic Table
1.1 Symbol
1.2 Group Number
2.3 Period Number
2.5 Block
2.6 Element Family
2.7 CAS Number
74401777440144
7429905
54386242
2.8 Space Group Name
2.9 Space Group Number
3 Facts
3.1 Interesting Facts
- Rubidium metal is 16th most common element found in the earth crust.
- Rubidium metal also found in minerals as well as seawater.
- Radium metal is the heaviest metal of Alkaline earth metals column.
- Radium metal is highly radioactive and does not have any stable isotopes.
3.2 Sources
Obtained from Lithium Production.
Mining, Ores of metals
3.3 History
3.3.1 Who Discovered
Robert Bunsen and Gustav Kirchhoff
Not Available
3.3.2 Discovery
3.4 Abundance
3.4.1 Abundance In Universe
3.4.3 Abundance In Sun
~0.000003 %~-9999 %
1E-08
0.1
3.4.5 Abundance In Meteorites
3.4.7 Abundance In Earth's Crust
3.5.2 Abundance In Oceans
3.5.3 Abundance In Humans
4 Uses
4.1 Uses & Benefits
- Rubidium's main application is in the glass manufacturing.
- Rubidium can very easily get ionized and hence it is used for ion engines, but it is still less efficient than that of Caesium.
- It is a highly radioactive metal; and sometime Radium-223 is used to treat prostate cancer.
-
It is used in luminous paints.
4.1.1 Industrial Uses
4.1.2 Medical Uses
NA
Pharmaceutical Industry
4.1.3 Other Uses
Alloys, Research Purposes
NA
4.2 Biological Properties
4.2.1 Toxicity
4.2.2 Present in Human Body
4.2.3 In Blood
2.49 Blood/mg dm-3NA
0
1970
4.2.5 In Bone
5 Physical
5.1 Melting Point
38.89 °C700.00 °C
27
3410
5.2 Boiling Point
688.00 °C1,737.00 °C
147
5660
5.3 Appearance
5.3.1 Physical State
5.3.2 Color
Grayish White
Silvery White
5.3.3 Luster
5.4 Hardness
5.4.1 Mohs Hardness
5.4.3 Brinell Hardness
5.4.5 Vickers Hardness
5.5 Speed of Sound
5.6 Optical Properties
5.6.1 Refractive Index
5.6.3 Reflectivity
5.7 Allotropes
5.7.1 α Allotropes
Not Available
Not Available
5.7.2 β Allotropes
Not Available
Not Available
5.7.3 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
6.3.2 Sanderson Electronegativity
6.3.5 Allred Rochow Electronegativity
6.3.6 Mulliken-Jaffe Electronegativity
6.3.8 Allen Electronegativity
6.4 Electropositivity
6.4.1 Pauling Electropositivity
6.5 Ionization Energies
6.5.1 1st Energy Level
403.00 kJ/mol509.30 kJ/mol
375.7
26130
6.5.3 2nd Energy Level
2,633.00 kJ/mol979.00 kJ/mol
710.2162
28750
6.5.5 3rd Energy Level
3,860.00 kJ/molNA
1600
34230
6.5.7 4th Energy Level
5,080.00 kJ/molNA
2780
37066
6.5.9 5th Energy Level
6,850.00 kJ/molNA
4305.2
97510
6.5.11 6th Energy Level
8,140.00 kJ/molNA
5715.8
105800
6.5.13 7th Energy level
9,570.00 kJ/molNA
7226.8
114300
6.5.15 8th Energy Level
13,120.00 kJ/molNA
8857.4
125300
6.5.17 9th Energy Level
14,500.00 kJ/molNA
14110
134700
6.5.19 10th Energy Level
26,740.00 kJ/molNA
17100
144300
6.5.22 11th Energy Level
6.5.24 12th Energy Level
6.5.26 13th Energy Level
6.6.1 14th Energy Level
6.7.1 15th Energy Level
6.7.2 16th Energy Level
7.1.1 17th Energy Level
7.1.2 18th Energy Level
7.4.2 19th Energy Level
7.4.3 20th Energy Level
7.4.5 21st Energy Level
7.4.6 22nd Energy Level
7.4.7 23rd Energy Level
7.4.9 24th Energy Level
7.4.10 25th Energy Level
7.5.2 26th Energy Level
7.5.3 27th Energy Level
7.5.5 28th Energy Level
7.5.6 29th Energy Level
7.5.8 30th Energy Level
7.7 Electrochemical Equivalent
3.19 g/amp-hr4.22 g/amp-hr
0.16812
8.3209
7.8 Electron Work Function
7.10 Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes, Radioactivity
Ionization, Radioactive Isotopes, Radioactivity
8 Atomic
8.1 Atomic Number
8.4 Electron Configuration
8.5 Crystal Structure
Body Centered Cubic (BCC)
Body Centered Cubic (BCC)
8.5.1 Crystal Lattice
8.6 Atom
8.6.1 Number of Protons
8.7.1 Number of Neutrons
8.9.1 Number of Electrons
9.2 Radius of an Atom
9.2.1 Atomic Radius
9.2.3 Covalent Radius
220.00 pm221.00 pm
96
260
9.2.4 Van der Waals Radius
303.00 pm283.00 pm
139
348
9.3 Atomic Weight
85.47 amu226.00 amu
6.94
294
9.5 Atomic Volume
55.90 cm3/mol45.20 cm3/mol
1.39
71.07
9.7 Adjacent Atomic Numbers
9.7.1 Previous Element
9.7.2 Next Element
9.8 Valence Electron Potential
9.47 (-eV)20.10 (-eV)
8
392.42
9.10 Lattice Constant
558.50 pm514.80 pm
228.58
891.25
9.11 Lattice Angles
π/2, π/2, π/2
π/2, π/2, π/2
9.12 Lattice C/A Ratio
10 Mechanical
10.1 Density
10.1.1 Density At Room Temperature
1.53 g/cm35.50 g/cm3
0.534
40.7
10.1.2 Density When Liquid (at m.p.)
10.2 Tensile Strength
10.3 Viscosity
10.4 Vapor Pressure
10.4.1 Vapor Pressure at 1000 K
10.5.1 Vapor Pressure at 2000 K
10.6 Elasticity properties
10.6.1 Shear Modulus
11.1.2 Bulk Modulus
11.1.5 Young's Modulus
11.2 Poisson Ratio
11.4 Other Mechanical Properties
12 Magnetic
12.1 Magnetic Characteristics
12.1.1 Specific Gravity
12.1.3 Magnetic Ordering
12.1.4 Permeability
12.1.6 Susceptibility
12.2 Electrical Properties
12.2.1 Electrical Property
12.2.2 Resistivity
128.00 nΩ·m100.00 nΩ·m
0.18
961
13.1.1 Electrical Conductivity
0.08 106/cm ΩNA
0.00666
0.63
13.2.1 Electron Affinity
14 Thermal
14.1 Specific Heat
0.36 J/(kg K)0.12 J/(kg K)
0.11
3.6
14.2 Molar Heat Capacity
31.06 J/mol·KNA
16.443
62.7
14.4 Thermal Conductivity
58.20 W/m·K18.60 W/m·K
6.3
429
14.6 Critical Temperature
14.7 Thermal Expansion
14.9 Enthalpy
14.9.1 Enthalpy of Vaporization
69.20 kJ/molNA
7.32
799.1
14.9.3 Enthalpy of Fusion
14.9.4 Enthalpy of Atomization
82.00 kJ/mol163.00 kJ/mol
61.5
837
14.10 Standard Molar Entropy
76.80 J/mol.K71.00 J/mol.K
9.5
198.1