Rubidium (Rb)

Rubidium is the 37th element in the periodic table and has a symbol of Rb and atomic number of 37. It has an atomic weight of 85.4678 and a mass number of 85. Rubidium has thirty-seven protons and forty-eight neutrons in its nucleus, and thirty-seven electrons in five shells. It is located in group one, period five and block s of the periodic table. Soft silvery metallic element, belongs to group 1 of the periodic table. Rb-97, the naturally occurring isotope, is radioactive. It is highly reactive, with properties similar to other elements in group 1, like igniting spontaneously in air. Discovered spectroscopically in 1861 by W. Bunsen and G.R. Kirchoff.

Atomic Number	37
Atomic Weight	85.4678
Mass Number	85

Group	1
Period	5
Block	s

Protons	37 p⁺
Neutrons	48 n⁰
Electrons	37 e^-

Physical Properties

Atomic Radius	235 pm 240 pm
Molar Volume	55.9 cm³/mol
Covalent Radius	210 pm 202 pm 225 pm 220 pm
Metallic Radius	216 pm 248 pm
Ionic Radius	152 pm 156 pm 161 pm 163 pm 166 pm 169 pm 172 pm 183 pm
Crystal Radius	166 pm 170 pm 175 pm 177 pm 180 pm 183 pm 186 pm 197 pm
Van der Waals Radius	290 pm 303 pm 325 pm 303 pm 411.4 pm
Density	1.53 g/cm³ 1,460 kg/m³

Chemical Properties

Energy

Proton Affinity
Electron Affinity	0.48592 eV/particle
Ionization Energy	4.177128 eV/particle 27.28954 eV/particle 39.247 eV/particle 52.2 eV/particle 68.4 eV/particle 82.9 eV/particle 98.67 eV/particle 132.8 eV/particle 150.63 eV/particle 277.12 eV/particle 313.1 eV/particle 356 eV/particle 400 eV/particle 443 eV/particle 502 eV/particle 550 eV/particle 601 eV/particle 654 eV/particle 706 eV/particle 857 eV/particle 905.3 eV/particle 958.9 eV/particle 1,024 eV/particle 1,080 eV/particle 1,125 eV/particle 1,242.5 eV/particle 1,294.567 eV/particle 3,133.3 eV/particle 3,281 eV/particle 3,442 eV/particle 3,600 eV/particle 3,815 eV/particle 3,988 eV/particle 4,214 eV/particle 4,356.865 eV/particle 18,305.883 eV/particle 18,965.51 eV/particle

Heat of Vaporization	75.8 kJ/mol
Heat of Fusion	2.2 kJ/mol
Heat of Formation	80.9 kJ/mol
Electrons

Electron Shells	2, 8, 18, 8, 1

Valence Electrons	1 ⓘ

Electron Configuration	[Kr] 5s¹ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s¹

Oxidation States	-1, 1
Electronegativity	4.177 eV/particle 0.104686 0.82
Electrophilicity Index	0.7363448717297969 eV/particle
States of Matter

Phase	Solid
Gas Phase
Boiling Point	961.15 K
Melting Point	312.45 K
Critical Pressure	16 MPa
Critical Temperature	2,093.15 K
Triple Point	312.41 K
Visual
Rubidium is a Silver. Rb has a CPK of #ff1493, Jmol of #702eb0, and MOLCAS GV of #702eb0. The Appearance of Element 37 is grey white.
Color	Silver #ff1493 #702eb0 #702eb0
Appearance	grey white
Refractive Index
Thermodynamic Properties
Thermal Conductivity	58.2 W/(m K)
Thermal Expansion
Molar Heat Capacity	31.06 J/(mol K)
Specific Heat Capacity	0.363 J/(g⋅K)
Heat Capacity Ratio (Adiabatic Index)
Electrical Properties
Type	Conductor
Electrical Conductivity	8.3 MS/m
Electrical Resistivity	0.00000012 Ω*m
Superconducting Point
Magnetism
Type	paramagnetic
Magnetic Susceptibility (Mass)	0.0000000026 m³/Kg
Magnetic Susceptibility (Molar)	0.000000000222 m³/mol
Magnetic Susceptibility (Volume)	0.00000398
Magnetic Ordering
Curie Point
Neel Point
Structure
The Crystal Structure of Rubidium is BCC. The lattice constant of Rb is 5.59 Å. The lattice angles of Element 37 are π/2, π/2, π/2.
Crystal Structure	Body Centered Cubic (BCC)
Lattice Constant	5.59 Å
Lattice Angles	π/2, π/2, π/2
Mechanical Properties
Rubidium has a Brinell of 0.216 MPa, and Mohs hardness of 0.3 MPa. The Bulk Modulus of Rb is 2.5 GPa. The Young Modulus of Element 37 is 2.4 GPa. The Speed of Sound of Rubidium (Rb) is 1300 m/s.
Hardness	0.216 MPa 0.3 MPa
Bulk Modulus	2.5 GPa
Shear Modulus
Young's Modulus	2.4 GPa
Poisson Ratio
Speed of Sound	1,300 m/s
Classification
The CAS Group of Rubidium is IA. The IUPAC Group of Rb is IA. The Glawe Number of Element 37 is 9. The Mendeleev Number of Rubidium (Rb) is 4. The Pettifor Number of Rubidium is 9. The Geochemical Class of Rb is alkali metal. The Goldschmidt Class of Element 37 is litophile.
Category	Alkali metals, Alkali metals
CAS Group	IA
IUPAC Group	IA
Glawe Number	9
Mendeleev Number	4
Pettifor Number	9
Geochemical Class	alkali metal
Goldschmidt Class	litophile

Other

The Dipole Polarizability of Rubidium is 319.8 plus or minus 0.3 a₀. Rb has a C6 Dispersion Coefficient (CD) of 4769 a₀, and C6 Dispersion Coefficient (GB) of 4660 a₀. The Allotropes of Element 37 is . The Neutron Cross Section of Rubidium (Rb) is 0.38. The Neutron Mass Absorption of Rubidium is 0.0003. The Quantum Numbers of Rb is 2S1/2. The Space Group of Element 37 is 229 (Im_3m).

Gas Basicity
Dipole Polarizability	319.8 ± 0.3 a₀
C6 Dispersion Coefficient	4,769 a₀ 4,660 a₀
Allotropes
Neutron Cross Section	0.38
Neutron Mass Absorption	0.0003
Quantum Numbers	2S1/2
Space Group	229 (Im_3m)

Isotopes of Rubidium

Stable Isotopes	1
Unstable Isotopes	33
Natural Isotopes	2

⁷¹Rb

Mass Number	71
Neutron Number	34
Relative Atomic Mass	70.965335 ± 0.000429 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life
Spin	5/2
Quadrupole Moment
Discovery Year
Parity	-

Decay Mode	Intensity
p (proton emission)

⁷²Rb

Mass Number	72
Neutron Number	35
Relative Atomic Mass	71.958851 ± 0.000537 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	103 ± 22 ns
Spin	1
Quadrupole Moment
Discovery Year	2017
Parity	+

Decay Mode	Intensity
p (proton emission)

⁷³Rb

Mass Number	73
Neutron Number	36
Relative Atomic Mass	72.950604506 ± 0.000043794 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life
Spin	3/2
Quadrupole Moment
Discovery Year	1996
Parity	-

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)
p (proton emission)	100%

⁷⁴Rb

Mass Number	74
Neutron Number	37
Relative Atomic Mass	73.944265867 ± 0.000003249 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	64.78 ± 0.03 ms
Spin	0
Quadrupole Moment	0
Discovery Year	1977
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)

⁷⁵Rb

Mass Number	75
Neutron Number	38
Relative Atomic Mass	74.9385732 ± 0.000001266 Da
G-Factor	0.386 ± 0.00066666666666667
Abundance
Radioactivity	☢️ Radioactive
Half Life	19 ± 1.2 s
Spin	3/2
Quadrupole Moment	0.81 ± 0.04
Discovery Year	1975
Parity	-

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁷⁶Rb

Mass Number	76
Neutron Number	39
Relative Atomic Mass	75.935073031 ± 0.000001006 Da
G-Factor	-0.372552 ± 0.000011
Abundance
Radioactivity	☢️ Radioactive
Half Life	36.5 ± 0.6 s
Spin	1
Quadrupole Moment	0.41 ± 0.09
Discovery Year	1969
Parity	-

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺α (β⁺-delayed α emission)	3.8%

⁷⁷Rb

Mass Number	77
Neutron Number	40
Relative Atomic Mass	76.930401599 ± 0.0000014 Da
G-Factor	0.43622666666667 ± 0.000013333333333333
Abundance
Radioactivity	☢️ Radioactive
Half Life	3.78 ± 0.04 m
Spin	3/2
Quadrupole Moment	0.84 ± 0.17
Discovery Year	1972
Parity	-

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁷⁸Rb

Mass Number	78
Neutron Number	41
Relative Atomic Mass	77.928141866 ± 0.000003475 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	17.66 ± 0.03 m
Spin	0
Quadrupole Moment	0
Discovery Year	1968
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁷⁹Rb

Mass Number	79
Neutron Number	42
Relative Atomic Mass	78.923990095 ± 0.000002085 Da
G-Factor	1.34292 ± 0.00048
Abundance
Radioactivity	☢️ Radioactive
Half Life	22.9 ± 0.5 m
Spin	5/2
Quadrupole Moment	-0.12 ± 0.04
Discovery Year	1957
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁸⁰Rb

Mass Number	80
Neutron Number	43
Relative Atomic Mass	79.922516442 ± 0.000002 Da
G-Factor	-0.0833 ± 0.0007
Abundance
Radioactivity	☢️ Radioactive
Half Life	33.4 ± 0.7 s
Spin	1
Quadrupole Moment	0.42 ± 0.08
Discovery Year	1961
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁸¹Rb

Mass Number	81
Neutron Number	44
Relative Atomic Mass	80.9189939 ± 0.000005265 Da
G-Factor	1.3727333333333 ± 0.00093333333333333
Abundance
Radioactivity	☢️ Radioactive
Half Life	4.572 ± 0.004 h
Spin	3/2
Quadrupole Moment	0.48 ± 0.1
Discovery Year	1949
Parity	-

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁸²Rb

Mass Number	82
Neutron Number	45
Relative Atomic Mass	81.918209023 ± 0.00000323 Da
G-Factor	0.554403 ± 0.000016
Abundance
Radioactivity	☢️ Radioactive
Half Life	1.2575 ± 0.0002 m
Spin	1
Quadrupole Moment	0.23 ± 0.1
Discovery Year	1949
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁸³Rb

Mass Number	83
Neutron Number	46
Relative Atomic Mass	82.915114181 ± 0.0000025 Da
G-Factor	0.56984 ± 0.00032
Abundance
Radioactivity	☢️ Radioactive
Half Life	86.2 ± 0.1 d
Spin	5/2
Quadrupole Moment	0.24 ± 0.05
Discovery Year	1950
Parity	-

Decay Mode	Intensity
ϵ (electron capture)	100%

⁸⁴Rb

Mass Number	84
Neutron Number	47
Relative Atomic Mass	83.914375223 ± 0.000002355 Da
G-Factor	-0.6625 ± 0.001
Abundance
Radioactivity	☢️ Radioactive
Half Life	32.82 ± 0.07 d
Spin	2
Quadrupole Moment	-0.02 ± 0.04
Discovery Year	1947
Parity	-

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	96.1%
β⁻ (β⁻ decay)	3.9%

⁸⁵Rb

Mass Number	85
Neutron Number	48
Relative Atomic Mass	84.91178973604 ± 0.00000000537 Da
G-Factor	0.541224 ± 0.000016
Abundance	72.17 ± 0.02
Radioactivity	Stable
Half Life	Not Radioactive ☢️
Spin	5/2
Quadrupole Moment	0.276 ± 0.001
Discovery Year	1921
Parity	-

⁸⁶Rb

Mass Number	86
Neutron Number	49
Relative Atomic Mass	85.911167443 ± 0.000000214 Da
G-Factor	-0.8487 ± 0.0008
Abundance
Radioactivity	☢️ Radioactive
Half Life	18.645 ± 0.008 d
Spin	2
Quadrupole Moment	0.23 ± 0.06
Discovery Year	1941
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
ϵ (electron capture)	0.0052%

⁸⁷Rb

Mass Number	87
Neutron Number	50
Relative Atomic Mass	86.909180529 ± 0.000000006 Da
G-Factor	1.8341933333333 ± 0.000053333333333333
Abundance	27.83 ± 0.02
Radioactivity	☢️ Radioactive
Half Life	49.7 ± 0.3 Gy
Spin	3/2
Quadrupole Moment	0.1335 ± 0.0005
Discovery Year	1921
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁸⁸Rb

Mass Number	88
Neutron Number	51
Relative Atomic Mass	87.91131559 ± 0.00000017 Da
G-Factor	0.253755 ± 0.00001
Abundance
Radioactivity	☢️ Radioactive
Half Life	17.78 ± 0.03 m
Spin	2
Quadrupole Moment	-0.01 ± 0.11
Discovery Year	1939
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁸⁹Rb

Mass Number	89
Neutron Number	52
Relative Atomic Mass	88.912278136 ± 0.000005825 Da
G-Factor	1.5887333333333 ± 0.00046666666666667
Abundance
Radioactivity	☢️ Radioactive
Half Life	15.32 ± 0.1 m
Spin	3/2
Quadrupole Moment	0.17 ± 0.03
Discovery Year	1940
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁹⁰Rb

Mass Number	90
Neutron Number	53
Relative Atomic Mass	89.914797557 ± 0.000006926 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	158 ± 5 s
Spin	0
Quadrupole Moment	0
Discovery Year	1951
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁹¹Rb

Mass Number	91
Neutron Number	54
Relative Atomic Mass	90.916537261 ± 0.000008375 Da
G-Factor	1.4540666666667 ± 0.001
Abundance
Radioactivity	☢️ Radioactive
Half Life	58.2 ± 0.3 s
Spin	3/2
Quadrupole Moment	0.19 ± 0.05
Discovery Year	1951
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)

⁹²Rb

Mass Number	92
Neutron Number	55
Relative Atomic Mass	91.919728477 ± 0.000006573 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	4.48 ± 0.03 s
Spin	0
Quadrupole Moment	0
Discovery Year	1960
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	0.0107%

⁹³Rb

Mass Number	93
Neutron Number	56
Relative Atomic Mass	92.922039334 ± 0.000008406 Da
G-Factor	0.56368 ± 0.00064
Abundance
Radioactivity	☢️ Radioactive
Half Life	5.84 ± 0.02 s
Spin	5/2
Quadrupole Moment	0.21 ± 0.06
Discovery Year	1960
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	1.39%

⁹⁴Rb

Mass Number	94
Neutron Number	57
Relative Atomic Mass	93.926394819 ± 0.000002177 Da
G-Factor	0.49936666666667 ± 0.0006
Abundance
Radioactivity	☢️ Radioactive
Half Life	2.702 ± 0.005 s
Spin	3
Quadrupole Moment	0.2 ± 0.07
Discovery Year	1961
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	10.3%

⁹⁵Rb

Mass Number	95
Neutron Number	58
Relative Atomic Mass	94.929263849 ± 0.000021733 Da
G-Factor	0.5332 ± 0.0012
Abundance
Radioactivity	☢️ Radioactive
Half Life	377.7 ± 0.8 ms
Spin	5/2
Quadrupole Moment	0.26 ± 0.09
Discovery Year	1967
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	8.7%

⁹⁶Rb

Mass Number	96
Neutron Number	59
Relative Atomic Mass	95.934133398 ± 0.000003599 Da
G-Factor	0.73275 ± 0.00085
Abundance
Radioactivity	☢️ Radioactive
Half Life	201.5 ± 0.9 ms
Spin	2
Quadrupole Moment	0.3 ± 0.09
Discovery Year	1967
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	13.7%
2n (2-neutron emission)

⁹⁷Rb

Mass Number	97
Neutron Number	60
Relative Atomic Mass	96.937177117 ± 0.000002052 Da
G-Factor	1.2266666666667 ± 0.0013333333333333
Abundance
Radioactivity	☢️ Radioactive
Half Life	169.1 ± 0.6 ms
Spin	3/2
Quadrupole Moment	0.7
Discovery Year	1969
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	25.5%
2n (2-neutron emission)

⁹⁸Rb

Mass Number	98
Neutron Number	61
Relative Atomic Mass	97.941632317 ± 0.000017265 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	115 ± 6 ms
Spin	0
Quadrupole Moment	0
Discovery Year	1971
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	14.3%
2n (2-neutron emission)	0.054%

⁹⁹Rb

Mass Number	99
Neutron Number	62
Relative Atomic Mass	98.94511919 ± 0.000004327 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	54 ± 4 ms
Spin	3/2
Quadrupole Moment
Discovery Year	1971
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	17.3%
2n (2-neutron emission)

¹⁰⁰Rb

Mass Number	100
Neutron Number	63
Relative Atomic Mass	99.950331532 ± 0.000014089 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	51.3 ± 1.6 ms
Spin	4
Quadrupole Moment
Discovery Year	1978
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	5.6%
2n (2-neutron emission)	0.15%

¹⁰¹Rb

Mass Number	101
Neutron Number	64
Relative Atomic Mass	100.954302 ± 0.000022 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	31.8 ± 3.3 ms
Spin	3/2
Quadrupole Moment
Discovery Year	1992
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	28%
2n (2-neutron emission)

¹⁰²Rb

Mass Number	102
Neutron Number	65
Relative Atomic Mass	101.960008 ± 0.000089 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	37 ± 4 ms
Spin	4
Quadrupole Moment
Discovery Year	1995
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	65%
2n (2-neutron emission)

¹⁰³Rb

Mass Number	103
Neutron Number	66
Relative Atomic Mass	102.964401 ± 0.000429 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	26 ± 11 ms
Spin	3/2
Quadrupole Moment
Discovery Year	2010
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

¹⁰⁴Rb

Mass Number	104
Neutron Number	67
Relative Atomic Mass	103.970531 ± 0.000537 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life
Spin
Quadrupole Moment
Discovery Year	2018
Parity

Decay Mode	Intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

History

German chemists Robert Bunsen and Gustav Kirchhoff discovered rubidium in 1861 by the newly developed method of flame spectroscopy. The separation of the metal was tried by Bunsen, but he never got samples with more than 18% of Rubidium. The separation of the metal was only accomplished by George de Hevesy, through the hydrolysis of melted rubidium hydroxide. From the Latin word rubidus, deepest red

Discoverers	R. Bunsen, G. Kirchoff
Discovery Location	Germany
Discovery Year	1861
Etymology (Name Origin)	Latin: rubidus (deep red); the color its salts impart to flames.
Pronunciation	roo-BID-i-em (English)

Rubidium is not known to be toxic

Rubidium burns with a reddish-violet flame color

Uses

Rubidium is used as a getter in vacuum tubes and as a photocell component. Rubidium compounds are sometimes used in fireworks to give them a purple color. Rubidium salts are used in glasses and ceramics. Rubidium-87 is slightly radioactive and has been used extensively in dating rocks. Used as a catalyst, photocells, and vacuum and cathode-ray tubes.

Sources

Occurs abundantly, but so widespread that production is limited. Usually obtained from lithium production.

Abundance
Abundance in Earth's crust	90 mg/kg
Natural Abundance (Oceans)	0.12 mg/L
Natural Abundance (Human Body)	0.00046 %
Natural Abundance (Meteor)	0.00032 %
Natural Abundance (Sun)	0.000003 %
Abundance in Universe	0.000001 %

Nuclear Screening Constants

1	s	0.7922
2	p	3.9612
2	s	9.8432
3	d	15.3208
3	p	15.6967
3	s	15.1573
4	p	26.1192
4	s	24.612
5	s	32.0155

Also Known As

Rb
element 37
37Rb

Translations

Norwegian Bokmålrubidium
Frenchrubidium
Italianrubidio
Polishrubid
GermanRubidium
Dutchrubidium
Spanishrubidio
Danishrubidium
Hungarianrubídium
Afrikaansrubidium
Amharicሩቢዲየም
Aragoneserubidio
Arabicروبيديوم
Azerbaijanirubidium
Belarusianрубідый
Bulgarianрубидий
Banglaরুবিডিয়াম
Bretonrubidiom
Bosnianrubidij
Catalanrubidi
Corsicanrubidiu
Czechrubidium
Chuvashрубиди
Welshrwbidiwm
Greekρουβίδιο
Esperantorubidio
Estonianrubiidium
Basquerubidio
Persianروبیدیم
Finnishrubidium
Friulianrubidi
Irishrúbaidiam
Galicianrubidio
Manxrubiddjum
Hakka ChineseRubidium
Hebrewרובידיום
Hindiरुबिडियम
Fiji Hindirubidium
Croatianrubidij
Armenianռուբիդիում
Interlinguarubidium
Indonesianrubidium
Idorubidio
Icelandicrúbidín
Japaneseルビジウム
Lojbanxunsodna
JavaneseRubidium
Georgianრუბიდიუმი
Kazakhрубидий
Kannadaರುಬಿಡಿಯಮ್
Korean루비듐
Kurdishrubîdyûm
Komiрубидий
Latinrubidium
LuxembourgishRubidium
Ligurianrubiddio
Lithuanianrubidis
Latvianrubīdijs
Malayalamറൂബിഡിയം
Marathiरुबिडियम
Western Mariрубидий
Malayrubidium
Burmeseရူဘီဒီယမ်
Norwegian Nynorskrubidium
Occitanrubidi
Punjabiਰੁਬੀਡੀਅਮ
Western Panjabiروبیڈیم
Portugueserubídio
Quechuarubidyu
Romanianrubidiu
Russianрубидий
Yakutрубидиум
Sicilianrubbidiu
Serbo-Croatianrubidijum
Slovakrubídium
Slovenianrubidij
Albanianrubidiumi
Serbianрубидијум
Saterland FrisianRubidium
Swedishrubidium
Swahilirubidi
Tamilருபீடியம்
Thaiรูบิเดียม
Tagalogrubidyo
Turkishrubidyum
Uyghurرۇبىدىي
Ukrainianрубідій
Uzbekrubidiy
Vepsrubidii
Vietnameserubiđi
Walloonrubidiom
Warayrubidyo
Kalmykрубидиум
Yiddishרובידיום
Yorubarubidium
Chinese銣
Cebuanorubidyo
Macedonianрубидиум
Central Kurdishڕۆبیدیۆم
Gujaratiરુબિડીયમ
Piedmonteserubidi
Tatarрубидий
Odiaରୁବିଡ଼ିଅମ
Somalirubiidhiyaam
Newariरुबिडियम
Cantonese銣
Literary Chinese銣
Belarusian (Taraskievica orthography)рубід
Aromanianrubidiu
Kyrgyzрубидий
Limburgishrubidium
Faroeserubidium
Teluguరుబీడియం
Scottish Gaelicruibidium
Nepaliरुबिडियम
Sanskritरुबिडियम
Malteserubidju
Lombardrubidio
Asturianrubidiu
Scotsrubidium
Portuguese (Brazil)rubídio
Paliरुबिडियम
Gan Chinese銣
Mongolianрубиди
Bhojpuriरुबिडियम
cdorubidium
Min Nan Chineserubidium
Sundaneserubidium
Tibetanརུ་བི་ཌིམ།
Tajikрубидӣй
Lingua Franca Novarubidio
Wu Chinese铷
kbprʊpɩdɩyɔm
olorubidii
Northern Frisianrubiidium
Chinese (Traditional)銣
Chinese (Taiwan)銣
Chinese (Simplified)铷
Sardinianrubìdiu
English (United Kingdom)rubidium
Bashkirрубидий
Moroccan Arabicروبيديوم
Egyptian Arabicروبيديوم
Pashtoروبيډيوم
Bikolrubidyo
Manipuriꯔꯨꯕꯤꯗꯤꯌꯝ
Cornishrubidiom
Balineserubidium
Skolt Samirubidium
Northern Samirubidium
Inari Samirubidium
Urduروبیڈیئم
Korean (North Korea)루비디움
ZuluILubimbo

Rubidium on ChemicalAid

AEDA subject keyword ID	17540
Art & Architecture Thesaurus ID	300380179
Australian Educational Vocabulary ID	scot/3568
Bibliothèque nationale de France ID	12165566c
Brockhaus Enzyklopädie online ID	rubidium
CAB ID	18779
CAS Registry Number	7440-17-7
CPV Supplementary	AA35
ChEBI ID	33322
ChemSpider ID	4512975
Common Procurement Vocabulary	14773000
DSSTOX compound identifier	DTXCID6047650
DSSTox substance ID	DTXSID4064686
Den Store Danske ID	rubidium
DrugBank ID	11346
ECHA Substance Infocard ID	100.028.296
Elhuyar ZTH ID	030348
Encyclopædia Britannica Online ID	science/rubidium
Encyclopædia Universalis ID	rubidium
Fandom article ID	sto:Rubidium
Freebase ID	/m/025sckv
French Vikidia ID	Rubidium
GND ID	4178576-9
Golden ID	Rubidium-EAWB8
Gran Enciclopèdia Catalana ID	0140247
Great Russian Encyclopedia Online ID	3517702
InChI	InChI=1S/Rb
InChIKey	IGLNJRXAVVLDKE-UHFFFAOYSA-N
KBpedia ID	Rubidium
Krugosvet article	nauka_i_tehnika/himiya/RUBIDI.html
Library of Congress authority ID	sh85115684
MeSH descriptor ID	D012413
Mindat mineral ID	52496
NE.se ID	rubidium
Namuwiki ID	루비듐
National Library of Israel J9U ID	987007546156605171
OmegaWiki Defined Meaning	158318
OpenAlex ID	C526903357
PSH ID	5747
Probes And Drugs ID	PD077494
PubChem CID	5357696
Quora topic ID	Rubidium
RxNorm ID	1311489
Store norske leksikon ID	rubidium
Treccani ID	rubidio
UNII	MLT4718TJW
USGS Thesaurus ID	1562
WordNet 3.1 Synset ID	14677133-n
YSO ID	38859
ZVG number	7370

Rubidium (Rb)

Physical Properties

Chemical Properties

Other

Isotopes of Rubidium

71Rb

72Rb

73Rb

74Rb

75Rb

76Rb

77Rb

78Rb

79Rb

80Rb

81Rb

82Rb

83Rb

84Rb

85Rb

86Rb

87Rb

88Rb

89Rb

90Rb

91Rb

92Rb

93Rb

94Rb

95Rb

96Rb

97Rb

98Rb

99Rb

100Rb

101Rb

102Rb

103Rb

104Rb