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Rubidium
Rubidium
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Rb Element
Rubidium Metal Rubidium Electron Configuration Rubidium Crystal Structure
Rubidium
Add ⊕
1 Periodic Table
1.1 Symbol
Rb
1.2 Group Number
Tennessine Metal
⊕
▶
▼
1
Rank: 17 (Overall)▶
▲
Gadolinium Metal
⊕
▶
◀ ▶ ADD ⊕
1.3 Period Number
Uranium Metal
⊕
▶
▼
5
Rank: 3 (Overall)▶
▲
Lithium Metal
⊕
▶
◀ ▶ ADD ⊕
1.4 Block
s block
1.5 Element Family
Alkali
1.6 CAS Number
Roentgenium Met..
⊕
▶
▼
7440177
Rank: 62 (Overall)▶
▲
Aluminium Metal
⊕
▶
◀ ▶ ADD ⊕
1.7 Space Group Name
Im_ 3m
1.8 Space Group Number
Sodium Metal
⊕
▶
▼
229.00
Rank: 1 (Overall)▶
▲
Plutonium Metal
⊕
▶
◀ ▶ ADD ⊕
2 Facts
2.1 Interesting Facts
  • Rubidium metal is 16th most common element found in the earth crust.
  • Rubidium metal also found in minerals as well as seawater.
2.2 Sources
Obtained from Lithium Production.
2.3 History
2.3.1 Who Discovered
Robert Bunsen and Gustav Kirchhoff
2.3.2 Discovery
In 1861
2.4 Abundance
2.4.1 Abundance In Universe
Iron Metal
⊕
▶
▼
1 * 10-6 %
Rank: 16 (Overall)▶
▲
Thallium Metal
⊕
▶
◀ ▶ ADD ⊕
2.4.2 Abundance In Sun
Iron Metal
⊕
▶
▼
~0.000003 %
Rank: 17 (Overall)▶
▲
Beryllium Metal
⊕
▶
◀ ▶ ADD ⊕
2.4.3 Abundance In Meteorites
Iron Metal
⊕
▶
▼
0.00 %
Rank: 19 (Overall)▶
▲
Gold Metal
⊕
▶
◀ ▶ ADD ⊕
2.4.4 Abundance In Earth's Crust
Aluminium Metal
⊕
▶
▼
0.01 %
Rank: 18 (Overall)▶
▲
Radium Metal
⊕
▶
◀ ▶ ADD ⊕
2.4.5 Abundance In Oceans
Sodium Metal
⊕
▶
▼
0.00 %
Rank: 7 (Overall)▶
▲
Protactinium Metal
⊕
▶
◀ ▶ ADD ⊕
2.4.6 Abundance In Humans
Calcium Metal
⊕
▶
▼
0.00 %
Rank: 7 (Overall)▶
▲
Radium Metal
⊕
▶
◀ ▶ ADD ⊕
3 Uses
3.1 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.
3.1.1 Industrial Uses
NA
3.1.2 Medical Uses
NA
3.1.3 Other Uses
Alloys, Research Purposes
3.2 Biological Properties
3.2.1 Toxicity
Non Toxic
3.2.2 Present in Human Body
✔ ✘
83% Alkali Metals Metals have it !
3.2.3 In Blood
Sodium Metal
⊕
▶
▼
2.49 Blood/mg dm-3
Rank: 7 (Overall)▶
▲
Plutonium Metal
⊕
▶
◀ ▶ ADD ⊕
3.2.4 In Bone
Calcium Metal
⊕
▶
▼
5.00 p.p.m.
Rank: 13 (Overall)▶
▲
Plutonium Metal
⊕
▶
◀ ▶ ADD ⊕
4 Physical
4.1 Melting Point
Tungsten Metal
⊕
▶
▼
38.89 °C
Rank: 78 (Overall)▶
▲
Francium Metal
⊕
▶
◀ ▶ ADD ⊕
4.2 Boiling Point
Tungsten Metal
⊕
▶
▼
688.00 °C
Rank: 74 (Overall)▶
▲
Flerovium Metal
⊕
▶
◀ ▶ ADD ⊕
4.3 Appearance
4.3.1 Physical State
Solid
4.3.2 Color
Grayish White
4.3.3 Luster
NA
4.4 Hardness
4.4.1 Mohs Hardness
Chromium Metal
⊕
▶
▼
0.30
Rank: 24 (Overall)▶
▲
Cesium Metal
⊕
▶
◀ ▶ ADD ⊕
4.4.2 Brinell Hardness
Osmium Metal
⊕
▶
▼
0.22 MPa
Rank: 55 (Overall)▶
▲
Cesium Metal
⊕
▶
◀ ▶ ADD ⊕
4.4.3 Vickers Hardness
Tungsten Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Palladium Metal
⊕
▶
◀ ▶ ADD ⊕
4.5 Speed of Sound
Technetium Metal
⊕
▶
▼
1,300.00 m/s
Rank: 50 (Overall)▶
▲
Thallium Metal
⊕
▶
◀ ▶ ADD ⊕
4.6 Optical Properties
4.6.1 Refractive Index
Palladium Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Mercury Metal
⊕
▶
◀ ▶ ADD ⊕
4.6.2 Reflectivity
Silver Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Molybdenum Metal
⊕
▶
◀ ▶ ADD ⊕
4.7 Allotropes
✔ ✘
No Alkali Metals Metals has it !
4.7.1 α Allotropes
Not Available
4.7.2 β Allotropes
Not Available
4.7.3 γ Allotropes
Not Available
5 Chemical
5.1 Chemical Formula
Rb
5.2 Isotopes
5.2.1 Known Isotopes
Palladium Metal
⊕
▶
▼
29
Rank: 10 (Overall)▶
▲
Tennessine Metal
⊕
▶
◀ ▶ ADD ⊕
5.3 Electronegativity
5.3.1 Pauling Electronegativity
Gold Metal
⊕
▶
▼
0.82
Rank: 51 (Overall)▶
▲
Francium Metal
⊕
▶
◀ ▶ ADD ⊕
5.3.2 Sanderson Electronegativity
Cobalt Metal
⊕
▶
▼
0.31
Rank: 32 (Overall)▶
▲
Cesium Metal
⊕
▶
◀ ▶ ADD ⊕
5.3.3 Allred Rochow Electronegativity
Gallium Metal
⊕
▶
▼
0.89
Rank: 40 (Overall)▶
▲
Cesium Metal
⊕
▶
◀ ▶ ADD ⊕
5.3.4 Mulliken-Jaffe Electronegativity
Polonium Metal
⊕
▶
▼
0.69
Rank: 24 (Overall)▶
▲
Cesium Metal
⊕
▶
◀ ▶ ADD ⊕
5.3.5 Allen Electronegativity
Berkelium Metal
⊕
▶
▼
0.71
Rank: 46 (Overall)▶
▲
Cesium Metal
⊕
▶
◀ ▶ ADD ⊕
5.4 Electropositivity
5.4.1 Pauling Electropositivity
Francium Metal
⊕
▶
▼
3.18
Rank: 3 (Overall)▶
▲
Gold Metal
⊕
▶
◀ ▶ ADD ⊕
5.5 Ionization Energies
5.5.1 1st Energy Level
Chromium Metal
⊕
▶
▼
403.00 kJ/mol
Rank: 88 (Overall)▶
▲
Cesium Metal
⊕
▶
◀ ▶ ADD ⊕
5.5.2 2nd Energy Level
Chromium Metal
⊕
▶
▼
2,633.00 kJ/mol
Rank: 6 (Overall)▶
▲
Ruthenium Metal
⊕
▶
◀ ▶ ADD ⊕
5.5.3 3rd Energy Level
Chromium Metal
⊕
▶
▼
3,860.00 kJ/mol
Rank: 11 (Overall)▶
▲
Osmium Metal
⊕
▶
◀ ▶ ADD ⊕
5.5.4 4th Energy Level
Chromium Metal
⊕
▶
▼
5,080.00 kJ/mol
Rank: 18 (Overall)▶
▲
Thorium Metal
⊕
▶
◀ ▶ ADD ⊕
5.5.5 5th Energy Level
Chromium Metal
⊕
▶
▼
6,850.00 kJ/mol
Rank: 19 (Overall)▶
▲
Dubnium Metal
⊕
▶
◀ ▶ ADD ⊕
5.5.6 6th Energy Level
Chromium Metal
⊕
▶
▼
8,140.00 kJ/mol
Rank: 20 (Overall)▶
▲
Seaborgium Metal
⊕
▶
◀ ▶ ADD ⊕
5.5.7 7th Energy level
Chromium Metal
⊕
▶
▼
9,570.00 kJ/mol
Rank: 20 (Overall)▶
▲
Bohrium Metal
⊕
▶
◀ ▶ ADD ⊕
5.5.8 8th Energy Level
Chromium Metal
⊕
▶
▼
13,120.00 kJ/mol
Rank: 17 (Overall)▶
▲
Hassium Metal
⊕
▶
◀ ▶ ADD ⊕
5.5.9 9th Energy Level
Chromium Metal
⊕
▶
▼
14,500.00 kJ/mol
Rank: 18 (Overall)▶
▲
Yttrium Metal
⊕
▶
◀ ▶ ADD ⊕
5.5.10 10th Energy Level
Chromium Metal
⊕
▶
▼
26,740.00 kJ/mol
Rank: 6 (Overall)▶
▲
Strontium Metal
⊕
▶
◀ ▶ ADD ⊕
5.5.11 11th Energy Level
Magnesium Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Yttrium Metal
⊕
▶
◀ ▶ ADD ⊕
5.5.12 12th Energy Level
Magnesium Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Molybdenum Metal
⊕
▶
◀ ▶ ADD ⊕
5.5.13 13th Energy Level
Titanium Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Molybdenum Metal
⊕
▶
◀ ▶ ADD ⊕
5.5.14 14th Energy Level
Vanadium Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Molybdenum Metal
⊕
▶
◀ ▶ ADD ⊕
5.5.15 15th Energy Level
Chromium Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Manganese Metal
⊕
▶
◀ ▶ ADD ⊕
5.5.16 16th Energy Level
Manganese Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Iron Metal
⊕
▶
◀ ▶ ADD ⊕
5.5.17 17th Energy Level
Iron Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Cobalt Metal
⊕
▶
◀ ▶ ADD ⊕
5.5.18 18th Energy Level
Cobalt Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Nickel Metal
⊕
▶
◀ ▶ ADD ⊕
5.5.19 19th Energy Level
Nickel Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Copper Metal
⊕
▶
◀ ▶ ADD ⊕
5.5.20 20th Energy Level
Zinc Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Molybdenum Metal
⊕
▶
◀ ▶ ADD ⊕
5.5.21 21st Energy Level
Zinc Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Molybdenum Metal
⊕
▶
◀ ▶ ADD ⊕
5.5.22 22nd Energy Level
Copper Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Molybdenum Metal
⊕
▶
◀ ▶ ADD ⊕
5.5.23 23rd Energy Level
Copper Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Molybdenum Metal
⊕
▶
◀ ▶ ADD ⊕
5.5.24 24th Energy Level
Iron Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Molybdenum Metal
⊕
▶
◀ ▶ ADD ⊕
5.5.25 25th Energy Level
Molybdenum Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Molybdenum Metal
⊕
▶
5.5.26 26th Energy Level
Molybdenum Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Molybdenum Metal
⊕
▶
5.5.27 27th Energy Level
Molybdenum Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Molybdenum Metal
⊕
▶
5.5.28 28th Energy Level
Molybdenum Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Molybdenum Metal
⊕
▶
5.5.29 29th Energy Level
Molybdenum Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Molybdenum Metal
⊕
▶
5.5.30 30th Energy Level
Molybdenum Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Molybdenum Metal
⊕
▶
5.6 Electrochemical Equivalent
Francium Metal
⊕
▶
▼
3.19 g/amp-hr
Rank: 14 (Overall)▶
▲
Beryllium Metal
⊕
▶
◀ ▶ ADD ⊕
5.7 Electron Work Function
Platinum Metal
⊕
▶
▼
2.16 eV
Rank: 45 (Overall)▶
▲
Cesium Metal
⊕
▶
◀ ▶ ADD ⊕
5.8 Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes, Radioactivity
6 Atomic
6.1 Atomic Number
Tennessine Metal
⊕
▶
▼
37
Rank: 75 (Overall)▶
▲
Lithium Metal
⊕
▶
◀ ▶ ADD ⊕
6.2 Electron Configuration
[Kr] 5s1
6.3 Crystal Structure
Body Centered Cubic (BCC)
6.3.1 Crystal Lattice
6.4 Atom
6.4.1 Number of Protons
Tennessine Metal
⊕
▶
▼
37
Rank: 74 (Overall)▶
▲
Lithium Metal
⊕
▶
◀ ▶ ADD ⊕
6.4.2 Number of Neutrons
Flerovium Metal
⊕
▶
▼
48
Rank: 56 (Overall)▶
▲
Lithium Metal
⊕
▶
◀ ▶ ADD ⊕
6.4.3 Number of Electrons
Tennessine Metal
⊕
▶
▼
37
Rank: 74 (Overall)▶
▲
Lithium Metal
⊕
▶
◀ ▶ ADD ⊕
6.5 Radius of an Atom
6.5.1 Atomic Radius
Cesium Metal
⊕
▶
▼
248.00 pm
Rank: 2 (Overall)▶
▲
Beryllium Metal
⊕
▶
◀ ▶ ADD ⊕
6.5.2 Covalent Radius
Francium Metal
⊕
▶
▼
220.00 pm
Rank: 4 (Overall)▶
▲
Beryllium Metal
⊕
▶
◀ ▶ ADD ⊕
6.5.3 Van der Waals Radius
Francium Metal
⊕
▶
▼
303.00 pm
Rank: 3 (Overall)▶
▲
Zinc Metal
⊕
▶
◀ ▶ ADD ⊕
6.6 Atomic Weight
Tennessine Metal
⊕
▶
▼
85.47 amu
Rank: 69 (Overall)▶
▲
Lithium Metal
⊕
▶
◀ ▶ ADD ⊕
6.7 Atomic Volume
Cesium Metal
⊕
▶
▼
55.90 cm3/mol
Rank: 2 (Overall)▶
▲
Manganese Metal
⊕
▶
◀ ▶ ADD ⊕
6.8 Adjacent Atomic Numbers
6.8.1 Previous Element
6.8.2 Next Element
6.9 Valence Electron Potential
Platinum Metal
⊕
▶
▼
9.47 (-eV)
Rank: 65 (Overall)▶
▲
Francium Metal
⊕
▶
◀ ▶ ADD ⊕
6.10 Lattice Constant
Manganese Metal
⊕
▶
▼
558.50 pm
Rank: 10 (Overall)▶
▲
Beryllium Metal
⊕
▶
◀ ▶ ADD ⊕
6.11 Lattice Angles
π/2, π/2, π/2
6.12 Lattice C/A Ratio
Cadmium Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Beryllium Metal
⊕
▶
◀ ▶ ADD ⊕
7 Mechanical
7.1 Density
7.1.1 Density At Room Temperature
Hassium Metal
⊕
▶
▼
1.53 g/cm3
Rank: 81 (Overall)▶
▲
Lithium Metal
⊕
▶
◀ ▶ ADD ⊕
7.1.2 Density When Liquid (at m.p.)
Osmium Metal
⊕
▶
▼
1.46 g/cm3
Rank: 56 (Overall)▶
▲
Lithium Metal
⊕
▶
◀ ▶ ADD ⊕
7.2 Tensile Strength
Iron Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Indium Metal
⊕
▶
◀ ▶ ADD ⊕
7.3 Viscosity
Mercury Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Mercury Metal
⊕
▶
7.4 Vapor Pressure
7.4.1 Vapor Pressure at 1000 K
Strontium Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Cerium Metal
⊕
▶
◀ ▶ ADD ⊕
7.4.2 Vapor Pressure at 2000 K
Chromium Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Tungsten Metal
⊕
▶
◀ ▶ ADD ⊕
7.5 Elasticity properties
7.5.1 Shear Modulus
Osmium Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Potassium Metal
⊕
▶
◀ ▶ ADD ⊕
7.5.2 Bulk Modulus
Osmium Metal
⊕
▶
▼
2.50 GPa
Rank: 49 (Overall)▶
▲
Cesium Metal
⊕
▶
◀ ▶ ADD ⊕
7.5.3 Young's Modulus
Iridium Metal
⊕
▶
▼
2.40 GPa
Rank: 57 (Overall)▶
▲
Cesium Metal
⊕
▶
◀ ▶ ADD ⊕
7.6 Poisson Ratio
Gallium Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Beryllium Metal
⊕
▶
◀ ▶ ADD ⊕
7.7 Other Mechanical Properties
Ductile
8 Magnetic
8.1 Magnetic Characteristics
8.1.1 Specific Gravity
Cobalt Metal
⊕
▶
▼
1.53
Rank: 67 (Overall)▶
▲
Lithium Metal
⊕
▶
◀ ▶ ADD ⊕
8.1.2 Magnetic Ordering
Paramagnetic
8.1.3 Permeability
Iron Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Bismuth Metal
⊕
▶
◀ ▶ ADD ⊕
8.1.4 Susceptibility
Iron Metal
⊕
▶
▼
Not Available
Rank: N/A (Overall)▶
▲
Bismuth Metal
⊕
▶
◀ ▶ ADD ⊕
8.2 Electrical Properties
8.2.1 Electrical Property
Conductor
8.2.2 Resistivity
Mercury Metal
⊕
▶
▼
128.00 nΩ·m
Rank: 26 (Overall)▶
▲
Thallium Metal
⊕
▶
◀ ▶ ADD ⊕
8.2.3 Electrical Conductivity
Silver Metal
⊕
▶
▼
0.08 106/cm Ω
Rank: 24 (Overall)▶
▲
Plutonium Metal
⊕
▶
◀ ▶ ADD ⊕
8.2.4 Electron Affinity
Gold Metal
⊕
▶
▼
46.90 kJ/mol
Rank: 24 (Overall)▶
▲
Mercury Metal
⊕
▶
◀ ▶ ADD ⊕
9 Thermal
9.1 Specific Heat
Lithium Metal
⊕
▶
▼
0.36 J/(kg K)
Rank: 17 (Overall)▶
▲
Americium Metal
⊕
▶
◀ ▶ ADD ⊕
9.2 Molar Heat Capacity
Americium Metal
⊕
▶
▼
31.06 J/mol·K
Rank: 5 (Overall)▶
▲
Beryllium Metal
⊕
▶
◀ ▶ ADD ⊕
9.3 Thermal Conductivity
Silver Metal
⊕
▶
▼
58.20 W/m·K
Rank: 26 (Overall)▶
▲
Neptunium Metal
⊕
▶
◀ ▶ ADD ⊕
9.4 Critical Temperature
Lithium Metal
⊕
▶
▼
2,093.00 K
Rank: 4 (Overall)▶
▲
Ytterbium Metal
⊕
▶
◀ ▶ ADD ⊕
9.5 Thermal Expansion
Cesium Metal
⊕
▶
▼
90.00 µm/(m·K)
Rank: 2 (Overall)▶
▲
Tungsten Metal
⊕
▶
◀ ▶ ADD ⊕
9.6 Enthalpy
9.6.1 Enthalpy of Vaporization
Tungsten Metal
⊕
▶
▼
69.20 kJ/mol
Rank: 56 (Overall)▶
▲
Zinc Metal
⊕
▶
◀ ▶ ADD ⊕
9.6.2 Enthalpy of Fusion
Tungsten Metal
⊕
▶
▼
2.19 kJ/mol
Rank: 62 (Overall)▶
▲
Cesium Metal
⊕
▶
◀ ▶ ADD ⊕
9.6.3 Enthalpy of Atomization
Tungsten Metal
⊕
▶
▼
82.00 kJ/mol
Rank: 59 (Overall)▶
▲
Mercury Metal
⊕
▶
◀ ▶ ADD ⊕
9.7 Standard Molar Entropy
Protactinium Me..
⊕
▶
▼
76.80 J/mol.K
Rank: 5 (Overall)▶
▲
Beryllium Metal
⊕
▶
◀ ▶ ADD ⊕

All Metals

Compare All Metals

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Thallium vs Samarium
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All Metals

Compare All Metals

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