Rubid, ²Rubidium

Rubid, ²Rubidium (Rb)

chemical element with symbol Rb and atomic number 37
Atomic Number37
Atomic Weight85.4678
Numri i masës85
Group1
Period5
Blocks
protoni37 p+
neutroni48 n0
elektroni37 e-
Animated Bohr model of Rb (Rubid, ²Rubidium)

Tipar Fizik

Atomic Radius
235 pm
molar volume
covalent radius
210 pm
Metallic Radius
216 pm
ionic radius
152 pm
Crystal Radius
166 pm
Van der Waals radius
303 pm
density
1,53 g/cm³
Atomic Radii Of The Elements: Rubid, ²Rubidium020406080100120140160180200220240260280300320pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

energjia
proton affinity
electron affinity
0,48592 eV/particle
ionization energy
4,177128 eV/particle
ionization energy of Rb (Rubid, ²Rubidium)
enthalpy of vaporization
75,8 kJ/mol
enthalpy of fusion
2,2 kJ/mol
standard enthalpy of formation
80,9 kJ/mol
elektroni
electron shell2, 8, 18, 8, 1
Bohr model: Rb (Rubid, ²Rubidium)
valence electron1
Lewis structure: Rb (Rubid, ²Rubidium)
konfigurimi i elektronit[Kr] 5s1
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1
Enhanced Bohr model of Rb (Rubid, ²Rubidium)
Orbital Diagram of Rb (Rubid, ²Rubidium)
oxidation number-1, 1
Elektronegativiteti
0.82
Electrophilicity Index
0,7363448717297969 eV/particle
fundamental state of matter
gjendja agregate e materiesSolid
gaseous state of matter
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
appearance
Ngjyra
Silver
appearancegrey white
refractive index
thermodynamic material property
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
electrical properties
typeConductor
electrical conductivity
8,3 MS/m
electrical resistivity
0,00000012 m Ω
Superpërcjellshmëria
Magnetizimi
typeparamagnetic
magnetic susceptibility (Mass)
0,0000000026 m³/Kg
magnetic susceptibility (Molar)
0,000000000222 m³/mol
magnetic susceptibility (Volume)
0,00000398
magnetic ordering
Curie temperature
Néel temperature
strukturë
Crystal StructureBody Centered Cubic (BCC)
lattice constant
5,59 Å
Lattice Anglesπ/2, π/2, π/2
mechanical property
hardness
0,3 MPa
bulk modulus
2,5 GPa
shear modulus
Young's modulus
2,4 GPa
Poisson's ratio
Shpejtësia e zërit
1 300 m/s
klasifikim
CategoryAlkali metals, Alkali metals
CAS GroupIA
IUPAC GroupIA
Glawe Number9
Mendeleev Number4
Pettifor Number9
Geochemical Classalkali metal
Goldschmidt classificationlitophile

other

Gas Basicity
polarizability
319,8 ± 0,3 a₀
C6 Dispersion Coefficient
4 769 a₀
allotrope
Neutron cross section
0,38
Neutron Mass Absorption
0,0003
numër kuantik2S1/2
space group229 (Im_3m)

Isotopes of Rubidium

Stable Isotopes1
Unstable Isotopes33
Natural Isotopes2
Isotopic Composition8572.17%8572.17%8727.83%8727.83%

71Rb

Numri i masës71
numri i neutroneve34
relative atomic mass
70,965335 ± 0,000429 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes
parity-

decay modeintensitet
p (proton emission)

72Rb

Numri i masës72
numri i neutroneve35
relative atomic mass
71,958851 ± 0,000537 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
103 ± 22 ns
Spini1
nuclear quadrupole moment
koha e zbulimit apo shpikjes2017
parity+

decay modeintensitet
p (proton emission)

73Rb

Numri i masës73
numri i neutroneve36
relative atomic mass
72,950604506 ± 0,000043794 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1996
parity-

decay modeintensitet
β+ (β+ decay; β+ = ϵ + e+)
p (proton emission)100%

74Rb

Numri i masës74
numri i neutroneve37
relative atomic mass
73,944265867 ± 0,000003249 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
64,78 ± 0,03 ms
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1977
parity+

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

75Rb

Numri i masës75
numri i neutroneve38
relative atomic mass
74,9385732 ± 0,000001266 Da
g-factor
0,386 ± 0,00066666666666667
natural abundance
Radioaktivitet☢️ radioactive element
half-life
19 ± 1,2 s
Spini3/2
nuclear quadrupole moment
0,81 ± 0,04
koha e zbulimit apo shpikjes1975
parity-

decay modeintensitet
β+ (β+ decay; β+ = ϵ + e+)100%

76Rb

Numri i masës76
numri i neutroneve39
relative atomic mass
75,935073031 ± 0,000001006 Da
g-factor
-0,372552 ± 0,000011
natural abundance
Radioaktivitet☢️ radioactive element
half-life
36,5 ± 0,6 s
Spini1
nuclear quadrupole moment
0,41 ± 0,09
koha e zbulimit apo shpikjes1969
parity-

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

77Rb

Numri i masës77
numri i neutroneve40
relative atomic mass
76,930401599 ± 0,0000014 Da
g-factor
0,43622666666667 ± 0,000013333333333333
natural abundance
Radioaktivitet☢️ radioactive element
half-life
3,78 ± 0,04 m
Spini3/2
nuclear quadrupole moment
0,84 ± 0,17
koha e zbulimit apo shpikjes1972
parity-

decay modeintensitet
β+ (β+ decay; β+ = ϵ + e+)100%

78Rb

Numri i masës78
numri i neutroneve41
relative atomic mass
77,928141866 ± 0,000003475 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
17,66 ± 0,03 m
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1968
parity+

decay modeintensitet
β+ (β+ decay; β+ = ϵ + e+)100%

79Rb

Numri i masës79
numri i neutroneve42
relative atomic mass
78,923990095 ± 0,000002085 Da
g-factor
1,34292 ± 0,00048
natural abundance
Radioaktivitet☢️ radioactive element
half-life
22,9 ± 0,5 m
Spini5/2
nuclear quadrupole moment
-0,12 ± 0,04
koha e zbulimit apo shpikjes1957
parity+

decay modeintensitet
β+ (β+ decay; β+ = ϵ + e+)100%

80Rb

Numri i masës80
numri i neutroneve43
relative atomic mass
79,922516442 ± 0,000002 Da
g-factor
-0,0833 ± 0,0007
natural abundance
Radioaktivitet☢️ radioactive element
half-life
33,4 ± 0,7 s
Spini1
nuclear quadrupole moment
0,42 ± 0,08
koha e zbulimit apo shpikjes1961
parity+

decay modeintensitet
β+ (β+ decay; β+ = ϵ + e+)100%

81Rb

Numri i masës81
numri i neutroneve44
relative atomic mass
80,9189939 ± 0,000005265 Da
g-factor
1,3727333333333 ± 0,00093333333333333
natural abundance
Radioaktivitet☢️ radioactive element
half-life
4,572 ± 0,004 h
Spini3/2
nuclear quadrupole moment
0,48 ± 0,1
koha e zbulimit apo shpikjes1949
parity-

decay modeintensitet
β+ (β+ decay; β+ = ϵ + e+)100%

82Rb

Numri i masës82
numri i neutroneve45
relative atomic mass
81,918209023 ± 0,00000323 Da
g-factor
0,554403 ± 0,000016
natural abundance
Radioaktivitet☢️ radioactive element
half-life
1,2575 ± 0,0002 m
Spini1
nuclear quadrupole moment
0,23 ± 0,1
koha e zbulimit apo shpikjes1949
parity+

decay modeintensitet
β+ (β+ decay; β+ = ϵ + e+)100%

83Rb

Numri i masës83
numri i neutroneve46
relative atomic mass
82,915114181 ± 0,0000025 Da
g-factor
0,56984 ± 0,00032
natural abundance
Radioaktivitet☢️ radioactive element
half-life
86,2 ± 0,1 d
Spini5/2
nuclear quadrupole moment
0,24 ± 0,05
koha e zbulimit apo shpikjes1950
parity-

decay modeintensitet
ϵ (electron capture)100%

84Rb

Numri i masës84
numri i neutroneve47
relative atomic mass
83,914375223 ± 0,000002355 Da
g-factor
-0,6625 ± 0,001
natural abundance
Radioaktivitet☢️ radioactive element
half-life
32,82 ± 0,07 d
Spini2
nuclear quadrupole moment
-0,02 ± 0,04
koha e zbulimit apo shpikjes1947
parity-

decay modeintensitet
β+ (β+ decay; β+ = ϵ + e+)96.1%
β (β decay)3.9%

85Rb

Numri i masës85
numri i neutroneve48
relative atomic mass
84,91178973604 ± 0,00000000537 Da
g-factor
0,541224 ± 0,000016
natural abundance
72,17 ± 0,02
Radioaktivitetstable isotope
half-lifeNot Radioactive ☢️
Spini5/2
nuclear quadrupole moment
0,276 ± 0,001
koha e zbulimit apo shpikjes1921
parity-

86Rb

Numri i masës86
numri i neutroneve49
relative atomic mass
85,911167443 ± 0,000000214 Da
g-factor
-0,8487 ± 0,0008
natural abundance
Radioaktivitet☢️ radioactive element
half-life
18,645 ± 0,008 d
Spini2
nuclear quadrupole moment
0,23 ± 0,06
koha e zbulimit apo shpikjes1941
parity-

decay modeintensitet
β (β decay)100%
ϵ (electron capture)0.0052%

87Rb

Numri i masës87
numri i neutroneve50
relative atomic mass
86,909180529 ± 0,000000006 Da
g-factor
1,8341933333333 ± 0,000053333333333333
natural abundance
27,83 ± 0,02
Radioaktivitet☢️ radioactive element
half-life
49,7 ± 0,3 Gy
Spini3/2
nuclear quadrupole moment
0,1335 ± 0,0005
koha e zbulimit apo shpikjes1921
parity-

decay modeintensitet
β (β decay)100%

88Rb

Numri i masës88
numri i neutroneve51
relative atomic mass
87,91131559 ± 0,00000017 Da
g-factor
0,253755 ± 0,00001
natural abundance
Radioaktivitet☢️ radioactive element
half-life
17,78 ± 0,03 m
Spini2
nuclear quadrupole moment
-0,01 ± 0,11
koha e zbulimit apo shpikjes1939
parity-

decay modeintensitet
β (β decay)100%

89Rb

Numri i masës89
numri i neutroneve52
relative atomic mass
88,912278136 ± 0,000005825 Da
g-factor
1,5887333333333 ± 0,00046666666666667
natural abundance
Radioaktivitet☢️ radioactive element
half-life
15,32 ± 0,1 m
Spini3/2
nuclear quadrupole moment
0,17 ± 0,03
koha e zbulimit apo shpikjes1940
parity-

decay modeintensitet
β (β decay)100%

90Rb

Numri i masës90
numri i neutroneve53
relative atomic mass
89,914797557 ± 0,000006926 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
158 ± 5 s
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1951
parity-

decay modeintensitet
β (β decay)100%

91Rb

Numri i masës91
numri i neutroneve54
relative atomic mass
90,916537261 ± 0,000008375 Da
g-factor
1,4540666666667 ± 0,001
natural abundance
Radioaktivitet☢️ radioactive element
half-life
58,2 ± 0,3 s
Spini3/2
nuclear quadrupole moment
0,19 ± 0,05
koha e zbulimit apo shpikjes1951
parity-

decay modeintensitet
β (β decay)100%
β n (β-delayed neutron emission)

92Rb

Numri i masës92
numri i neutroneve55
relative atomic mass
91,919728477 ± 0,000006573 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
4,48 ± 0,03 s
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1960
parity-

decay modeintensitet
β (β decay)100%
β n (β-delayed neutron emission)0.0107%

93Rb

Numri i masës93
numri i neutroneve56
relative atomic mass
92,922039334 ± 0,000008406 Da
g-factor
0,56368 ± 0,00064
natural abundance
Radioaktivitet☢️ radioactive element
half-life
5,84 ± 0,02 s
Spini5/2
nuclear quadrupole moment
0,21 ± 0,06
koha e zbulimit apo shpikjes1960
parity-

decay modeintensitet
β (β decay)100%
β n (β-delayed neutron emission)1.39%

94Rb

Numri i masës94
numri i neutroneve57
relative atomic mass
93,926394819 ± 0,000002177 Da
g-factor
0,49936666666667 ± 0,0006
natural abundance
Radioaktivitet☢️ radioactive element
half-life
2,702 ± 0,005 s
Spini3
nuclear quadrupole moment
0,2 ± 0,07
koha e zbulimit apo shpikjes1961
parity-

decay modeintensitet
β (β decay)100%
β n (β-delayed neutron emission)10.3%

95Rb

Numri i masës95
numri i neutroneve58
relative atomic mass
94,929263849 ± 0,000021733 Da
g-factor
0,5332 ± 0,0012
natural abundance
Radioaktivitet☢️ radioactive element
half-life
377,7 ± 0,8 ms
Spini5/2
nuclear quadrupole moment
0,26 ± 0,09
koha e zbulimit apo shpikjes1967
parity-

decay modeintensitet
β (β decay)100%
β n (β-delayed neutron emission)8.7%

96Rb

Numri i masës96
numri i neutroneve59
relative atomic mass
95,934133398 ± 0,000003599 Da
g-factor
0,73275 ± 0,00085
natural abundance
Radioaktivitet☢️ radioactive element
half-life
201,5 ± 0,9 ms
Spini2
nuclear quadrupole moment
0,3 ± 0,09
koha e zbulimit apo shpikjes1967
parity-

decay modeintensitet
β (β decay)100%
β n (β-delayed neutron emission)13.7%
2n (2-neutron emission)

97Rb

Numri i masës97
numri i neutroneve60
relative atomic mass
96,937177117 ± 0,000002052 Da
g-factor
1,2266666666667 ± 0,0013333333333333
natural abundance
Radioaktivitet☢️ radioactive element
half-life
169,1 ± 0,6 ms
Spini3/2
nuclear quadrupole moment
0,7
koha e zbulimit apo shpikjes1969
parity+

decay modeintensitet
β (β decay)100%
β n (β-delayed neutron emission)25.5%
2n (2-neutron emission)

98Rb

Numri i masës98
numri i neutroneve61
relative atomic mass
97,941632317 ± 0,000017265 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
115 ± 6 ms
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1971
parity-

decay modeintensitet
β (β decay)100%
β n (β-delayed neutron emission)14.3%
2n (2-neutron emission)0.054%

99Rb

Numri i masës99
numri i neutroneve62
relative atomic mass
98,94511919 ± 0,000004327 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
54 ± 4 ms
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1971
parity+

decay modeintensitet
β (β decay)100%
β n (β-delayed neutron emission)17.3%
2n (2-neutron emission)

100Rb

Numri i masës100
numri i neutroneve63
relative atomic mass
99,950331532 ± 0,000014089 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
51,3 ± 1,6 ms
Spini4
nuclear quadrupole moment
koha e zbulimit apo shpikjes1978
parity-

decay modeintensitet
β (β decay)100%
β n (β-delayed neutron emission)5.6%
2n (2-neutron emission)0.15%

101Rb

Numri i masës101
numri i neutroneve64
relative atomic mass
100,954302 ± 0,000022 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
31,8 ± 3,3 ms
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1992
parity+

decay modeintensitet
β (β decay)100%
β n (β-delayed neutron emission)28%
2n (2-neutron emission)

102Rb

Numri i masës102
numri i neutroneve65
relative atomic mass
101,960008 ± 0,000089 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
37 ± 4 ms
Spini4
nuclear quadrupole moment
koha e zbulimit apo shpikjes1995
parity+

decay modeintensitet
β (β decay)100%
β n (β-delayed neutron emission)65%
2n (2-neutron emission)

103Rb

Numri i masës103
numri i neutroneve66
relative atomic mass
102,964401 ± 0,000429 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
26 ± 11 ms
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes2010
parity+

decay modeintensitet
β (β decay)100%
β n (β-delayed neutron emission)
2n (2-neutron emission)

104Rb

Numri i masës104
numri i neutroneve67
relative atomic mass
103,970531 ± 0,000537 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini
nuclear quadrupole moment
koha e zbulimit apo shpikjes2018
parity

decay modeintensitet
β (β decay)
β n (β-delayed neutron emission)
2n (2-neutron emission)
RbMetal.JPG

historia

zbuluesR. Bunsen, G. Kirchoff
vendndodhja e zbulimitGermany
koha e zbulimit apo shpikjes1861
EtimologjiaLatin: rubidus (deep red); the color its salts impart to flames.
pronunciationroo-BID-i-em (anglisht)

burim

Abundance
Abundance in Earth's crust
natural abundance (Oqeani)
0,12 mg/L
natural abundance (Trupi i njeriut)
0,00046 %
natural abundance (meteoroid)
0,00032 %
natural abundance (Diell)
0,000003 %
Abundance in Universe
0,000001 %

Nuclear Screening Constants

1s0.7922
2p3.9612
2s9.8432
3d15.3208
3p15.6967
3s15.1573
4p26.1192
4s24.612
5s32.0155