Isotopes of Rubidium

List of known isotopes of the element Rubidium.

Isotope	t½	%	Spin/parity	Radius	Isotopic mass	Discovery
⁷²Rb	103 ±22 ns	syn.	—	—	7.195·10⁷ ±537 keV/c²	2017
⁷³Rb	81 ns	syn.	(3/2-)	—	7.295·10⁷ ±43.79 keV/c²	1996
⁷⁴Rb	64.77 ±30 ms	syn.	0+	—	7.394·10⁷ ±3.249 keV/c²	1977
⁷⁵Rb	19 ±12 s	syn.	3/2(-)	—	7.493·10⁷ ±1.266 keV/c²	1975
⁷⁶Rb	36.5 ±6 s	syn.	1(-)	4.227 ±0.007 fm	7.593·10⁷ ±1.006 keV/c²	1969
⁷⁷Rb	3.78 ±4 m	syn.	3/2-	4.235 ±0.008 fm	7.693·10⁷ ±1.4 keV/c²	1972
⁷⁸Rb	17.66 ±3 m	syn.	0(+)	4.238 ±0.0083 fm	7.792·10⁷ ±3.475 keV/c²	1968
⁷⁹Rb	22.9 ±5 m	syn.	5/2+	4.228 ±0.0065 fm	7.892·10⁷ ±2.085 keV/c²	1957
⁸⁰Rb	33.4 ±7 s	syn.	1+	4.227 ±0.0061 fm	7.992·10⁷ ±2 keV/c²	1961
⁸¹Rb	4.572 ±4 h	syn.	3/2-	4.221 ±0.0051 fm	8.091·10⁷ ±5.265 keV/c²	1949
⁸²Rb	1.257 ±2 m	syn.	1+	4.216 ±0.0042 fm	8.191·10⁷ ±3.23 keV/c²	1949
⁸³Rb	86.2 ±1 d	syn.	5/2-	4.205 ±0.0028 fm	8.291·10⁷ ±2.5 keV/c²	1950
⁸⁴Rb	32.82 ±7 d	syn.	2-	4.199 ±0.0023 fm	8.391·10⁷ ±2.355 keV/c²	1947
⁸⁵Rb	stab.	72.17 ±0.02 %	5/2-	4.203 ±0.0024 fm	8.491·10⁷ ±0.00537 keV/c²	1921
⁸⁶Rb	18.64 ±18 d	syn.	2-	4.202 ±0.0023 fm	8.591·10⁷ ±0.214 keV/c²	1941
⁸⁷Rb	4.97·10¹⁰ ±3 a	27.83 ±0.02 %	3/2-	4.198 ±0.0021 fm	8.69·10⁷ ±0.006 keV/c²	1921
⁸⁸Rb	17.77 ±18 m	syn.	2-	4.217 ±0.0038 fm	8.791·10⁷ ±0.17 keV/c²	1939
⁸⁹Rb	15.32 ±10 m	syn.	3/2-	4.239 ±0.0074 fm	8.891·10⁷ ±5.825 keV/c²	1940
⁹⁰Rb	158 ±5 s	syn.	0-	4.255 ±0.0102 fm	8.991·10⁷ ±6.926 keV/c²	1951
⁹¹Rb	58.2 ±3 s	syn.	3/2(-)	4.272 ±0.0131 fm	9.091·10⁷ ±8.375 keV/c²	1951
⁹²Rb	4.48 ±3 s	syn.	0-	4.29 ±0.0163 fm	9.191·10⁷ ±6.573 keV/c²	1960
⁹³Rb	5.84 ±2 s	syn.	5/2-	4.304 ±0.0187 fm	9.292·10⁷ ±8.406 keV/c²	1960
⁹⁴Rb	2.702 ±5 s	syn.	3(-)	4.318 ±0.0211 fm	9.392·10⁷ ±2.177 keV/c²	1961
⁹⁵Rb	377.7 ±8 ms	syn.	5/2-	4.339 ±0.0248 fm	9.492·10⁷ ±21.73 keV/c²	1967
⁹⁶Rb	203 ±3 ms	syn.	2(-)	4.35 ±0.0267 fm	9.593·10⁷ ±3.599 keV/c²	1967
⁹⁷Rb	169.1 ±6 ms	syn.	3/2+	4.423 ±0.0395 fm	9.693·10⁷ ±2.052 keV/c²	1969
⁹⁸Rb	115 ±6 ms	syn.	0(-)	4.433 ±0.0414 fm	9.794·10⁷ ±17.26 keV/c²	1971
⁹⁹Rb	54 ±4 ms	syn.	(3/2+)	—	9.894·10⁷ ±4.327 keV/c²	1971
¹⁰⁰Rb	52 ±2 ms	syn.	(4-)	—	9.995·10⁷ ±14.08 keV/c²	1978
¹⁰¹Rb	32 ±5 ms	syn.	(3/2+)	—	1.009·10⁸ ±22 keV/c²	1992
¹⁰²Rb	37 ±5 ms	syn.	—	—	1.019·10⁸ ±89 keV/c²	1995
¹⁰³Rb	23 ± ms	syn.	—	—	1.029·10⁸ ±429 keV/c²	2010
¹⁰⁴Rb	stab.	syn.	—	—	1.039·10⁸ ±537 keV/c²	2018
¹⁰⁵Rb	stab.	syn.	—	—	—	—
¹⁰⁶Rb	stab.	syn.	—	—	—	—

72RbRubidium-72

Classification	z: 37; n: 35; m: 72
Half life	103 ±22 ns
Natural abundance	synthetic nuclide
Decay modes	proton emission; electron capture + β⁺ decay
Discovery	2017
Mass excess	-38,330 ±500 keV
Binding energy	8,202 ±7 keV
Single-particle energy	-708 ±517 keV
Neutron separation energy	14,110 ±640 keV
Q value for electron capture	15,610 ±500 keV

Point at nuclide Decay chain of Rubidium-72

73RbRubidium-73

Classification	z: 37; n: 36; m: 73
Half life	81 ns
Natural abundance	synthetic nuclide
Spin/parity	(3/2-)
Decay modes	proton emission; electron capture + β⁺ decay
Discovery	1996
Mass excess	-46,020 ±40.79 keV
Binding energy	8,305 ±0.5588 keV
Single-particle energy	-640 ±40 keV
Neutron separation energy	15,750 ±502 keV
Q value for electron capture	10,540 ±41.32 keV
β⁻ decay energy	-14,070 ±403 keV

Point at nuclide Decay chain of Rubidium-73

74RbRubidium-74

Classification	z: 37; n: 37; m: 74
Half life	64.77 ±30 ms
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture + β⁺ decay
Discovery	1977
Mass excess	-51,920 ±3.027 keV
Binding energy	8,381 ±0.0409 keV
Single-particle energy	2,653 ±7.24 keV
Neutron separation energy	13,970 ±40.9 keV
Q value for electron capture	10,410 ±3.635 keV
β⁻ decay energy	-11,090 ±100 keV
β⁻ decay energy with neutron	-28,040 ±401 keV

Point at nuclide Decay chain of Rubidium-74

75RbRubidium-75

Classification	z: 37; n: 38; m: 75
Half life	19 ±12 s
Natural abundance	synthetic nuclide
Spin/parity	3/2(-)
Decay modes	electron capture + β⁺ decay
Discovery	1975
Mass excess	-57,220 ±1.18 keV
Binding energy	8,448 ±0.0157 keV
Single-particle energy	2,175 ±2.333 keV
Neutron separation energy	13,370 ±3.249 keV
Q value for electron capture	7,104 ±8.18 keV
β⁻ decay energy	-10,600 ±220 keV
β⁻ decay energy with neutron	-24,470 ±100 keV
Magnetic dipole moment	0.579 ±0.001 μN
Electric quadrupole moment	0.81 ±0.04 b

Point at nuclide Decay chain of Rubidium-75

76RbRubidium-76

Classification	z: 37; n: 39; m: 76
Half life	36.5 ±6 s
Natural abundance	synthetic nuclide
Spin/parity	1(-)
Decay modes	electron capture + β⁺ decay; electron capture + α decay
Discovery	1969
Mass excess	-60,480 ±0.938 keV
Binding energy	8,486 ±0.0123 keV
Single-particle energy	3,444 ±8.158 keV
Neutron separation energy	11,330 ±1.507 keV
Q value for electron capture	8,534 ±4.121 keV
β⁻ decay energy	-6,232 ±34.47 keV
β⁻ decay energy with neutron	-21,940 ±220 keV
Magnetic dipole moment	-0.3726 ±1.1·10^-5 μN
Electric quadrupole moment	0.41 ±0.09 b

Point at nuclide Decay chain of Rubidium-76

77RbRubidium-77

Classification	z: 37; n: 40; m: 77
Half life	3.78 ±4 m
Natural abundance	synthetic nuclide
Spin/parity	3/2-
Decay modes	electron capture + β⁺ decay
Discovery	1972
Mass excess	-64,840 ±1.304 keV
Binding energy	8,537 ±0.0169 keV
Single-particle energy	3,105 ±4.219 keV
Neutron separation energy	12,420 ±1.606 keV
Q value for electron capture	5,338 ±2.351 keV
β⁻ decay energy	-7,028 ±8.024 keV
β⁻ decay energy with neutron	-18,660 ±34.48 keV
Magnetic dipole moment	0.6543 ±2·10^-5 μN
Electric quadrupole moment	0.84 ±0.17 b

Point at nuclide Decay chain of Rubidium-77

78RbRubidium-78

Classification	z: 37; n: 41; m: 78
Half life	17.66 ±3 m
Natural abundance	synthetic nuclide
Spin/parity	0(+)
Decay modes	electron capture + β⁺ decay
Discovery	1968
Mass excess	-66,940 ±3.237 keV
Binding energy	8,558 ±0.0415 keV
Single-particle energy	4,054 ±3.782 keV
Neutron separation energy	10,170 ±3.49 keV
Q value for electron capture	7,242 ±3.252 keV
β⁻ decay energy	-3,762 ±8.124 keV
β⁻ decay energy with neutron	-17,210 ±8.554 keV
Magnetic dipole moment	2.548 ±0.001 μN
Electric quadrupole moment	1.07 ±0.03 b

Point at nuclide Decay chain of Rubidium-78

79RbRubidium-79

Classification	z: 37; n: 42; m: 79
Half life	22.9 ±5 m
Natural abundance	synthetic nuclide
Spin/parity	5/2+
Decay modes	electron capture + β⁺ decay
Discovery	1957
Mass excess	-70,810 ±1.943 keV
Binding energy	8,601 ±0.0246 keV
Single-particle energy	3,913 ±1.966 keV
Neutron separation energy	11,930 ±3.775 keV
Q value for electron capture	3,639 ±3.986 keV
β⁻ decay energy	-5,324 ±7.563 keV
β⁻ decay energy with neutron	-15,710 ±7.701 keV
Magnetic dipole moment	3.357 ±0.0012 μN
Electric quadrupole moment	-0.12 ±0.04 b

Point at nuclide Decay chain of Rubidium-79

80RbRubidium-80

Classification	z: 37; n: 43; m: 80
Half life	33.4 ±7 s
Natural abundance	synthetic nuclide
Spin/parity	1+
Decay modes	electron capture + β⁺ decay
Discovery	1961
Mass excess	-72,180 ±1.863 keV
Binding energy	8,611 ±0.0233 keV
Single-particle energy	5,022 ±3.947 keV
Neutron separation energy	9,444 ±2.691 keV
Q value for electron capture	5,717 ±1.988 keV
β⁻ decay energy	-1,865 ±3.933 keV
β⁻ decay energy with neutron	-14,770 ±7.651 keV
Magnetic dipole moment	-0.0833 ±7·10^-4 μN
Electric quadrupole moment	0.42 ±0.08 b

Point at nuclide Decay chain of Rubidium-80

81RbRubidium-81

Classification	z: 37; n: 44; m: 81
Half life	4.572 ±4 h
Natural abundance	synthetic nuclide
Spin/parity	3/2-
Decay modes	electron capture + β⁺ decay
Discovery	1949
Mass excess	-75,460 ±4.904 keV
Binding energy	8,645 ±0.0605 keV
Single-particle energy	4,852 ±4.929 keV
Neutron separation energy	11,350 ±5.246 keV
Q value for electron capture	2,239 ±5.02 keV
β⁻ decay energy	-3,929 ±5.817 keV
β⁻ decay energy with neutron	-13,220 ±6.004 keV
Magnetic dipole moment	2.059 ±0.0014 μN
Electric quadrupole moment	0.48 ±0.1 b

Point at nuclide Decay chain of Rubidium-81

82RbRubidium-82

Classification	z: 37; n: 45; m: 82
Half life	1.257 ±2 m
Natural abundance	synthetic nuclide
Spin/parity	1+
Decay modes	electron capture + β⁺ decay
Discovery	1949
Mass excess	-76,190 ±3.009 keV
Binding energy	8,647 ±0.0367 keV
Single-particle energy	5,780 ±3.194 keV
Neutron separation energy	8,802 ±5.753 keV
Q value for electron capture	4,403 ±3.009 keV
β⁻ decay energy	-177.8 ±6.704 keV
β⁻ decay energy with neutron	-12,740 ±4.34 keV
Magnetic dipole moment	0.5544 ±1.6·10^-5 μN
Electric quadrupole moment	0.23 ±0.1 b

Point at nuclide Decay chain of Rubidium-82

83RbRubidium-83

Classification	z: 37; n: 46; m: 83
Half life	86.2 ±1 d
Natural abundance	synthetic nuclide
Spin/parity	5/2-
Decay modes	electron capture (EC)
Discovery	1950
Mass excess	-79,080 ±2.329 keV
Binding energy	8,675 ±0.0281 keV
Single-particle energy	5,767 ±2.328 keV
Neutron separation energy	10,950 ±3.804 keV
Q value for electron capture	920 ±2.329 keV
β⁻ decay energy	-2,274 ±6.424 keV
β⁻ decay energy with neutron	-11,140 ±6.428 keV
Magnetic dipole moment	1.424 ±8·10^-4 μN
Electric quadrupole moment	0.24 ±0.05 b

Point at nuclide Decay chain of Rubidium-83

84RbRubidium-84

Classification	z: 37; n: 47; m: 84
Half life	32.82 ±7 d
Natural abundance	synthetic nuclide
Spin/parity	2-
Decay modes	electron capture + β⁺ decay; β⁻ decay
Discovery	1947
Mass excess	-79,760 ±2.194 keV
Binding energy	8,676 ±0.0261 keV
Single-particle energy	7,057 ±2.194 keV
Neutron separation energy	8,759 ±3.199 keV
Q value for electron capture	2,680 ±2.19 keV
β⁻ decay energy	890.6 ±2.335 keV
β⁻ decay energy with neutron	-11,040 ±7.177 keV
Magnetic dipole moment	-1.325 ±0.002 μN
Electric quadrupole moment	-0.02 ±0.04 b

Point at nuclide Decay chain of Rubidium-84

85RbRubidium-85

Classification	z: 37; n: 48; m: 85
Half life	stable nuclide
Natural abundance	72.17 ±0.02 %
Spin/parity	5/2-
Discovery	1921
Mass excess	-82,170 ±0.005 keV
Binding energy	8,697 ±3·10^-4 keV
Single-particle energy	7,016 ±0.0037 keV
Neutron separation energy	10,470 ±2.194 keV
Q value for electron capture	-687 ±2 keV
β⁻ decay energy	-1,065 ±2.813 keV
β⁻ decay energy with neutron	-9,590 ±1.243 keV
Magnetic dipole moment	1.353 ±4·10^-5 μN
Electric quadrupole moment	0.276 ±0.001 b

Point at nuclide

86RbRubidium-86

Classification	z: 37; n: 49; m: 86
Half life	18.64 ±18 d
Natural abundance	synthetic nuclide
Spin/parity	2-
Decay modes	β⁻ decay; electron capture (EC)
Discovery	1941
Mass excess	-82,750 ±0.2 keV
Binding energy	8,696 ±0.0023 keV
Single-particle energy	8,555 ±2.01 keV
Neutron separation energy	8,650 ±0.2 keV
Q value for electron capture	518.6 ±0.2 keV
β⁻ decay energy	1,776 ±0.2001 keV
β⁻ decay energy with neutron	-9,716 ±2.82 keV
Magnetic dipole moment	-1.698 ±0.0016 μN
Electric quadrupole moment	0.23 ±0.06 b

Point at nuclide Decay chain of Rubidium-86

87RbRubidium-87

Classification	z: 37; n: 50; m: 87
Half life	4.97·10¹⁰ ±3 a
Natural abundance	27.83 ±0.02 %
Spin/parity	3/2-
Decay modes	β⁻ decay
Discovery	1921
Mass excess	-84,600 ±0.006 keV
Binding energy	8,710 ±3·10^-4 keV
Single-particle energy	8,621 ±0.0051 keV
Neutron separation energy	9,922 ±0.2001 keV
Q value for electron capture	-3,889 ±0.246 keV
β⁻ decay energy	282.2 ±0.0063 keV
β⁻ decay energy with neutron	-8,147 ±0.0065 keV
Magnetic dipole moment	2.751 ±8·10^-5 μN
Electric quadrupole moment	0.1335 ±5·10^-4 b

Point at nuclide Decay chain of Rubidium-87

88RbRubidium-88

Classification	z: 37; n: 51; m: 88
Half life	17.77 ±18 m
Natural abundance	synthetic nuclide
Spin/parity	2-
Decay modes	β⁻ decay
Discovery	1939
Mass excess	-82,610 ±0.159 keV
Binding energy	8,681 ±0.0018 keV
Single-particle energy	9,188 ±0.2931 keV
Neutron separation energy	6,082 ±0.1589 keV
Q value for electron capture	-2,918 ±2.613 keV
β⁻ decay energy	5,312 ±0.159 keV
β⁻ decay energy with neutron	-5,801 ±0.159 keV
Magnetic dipole moment	0.5075 ±2·10^-5 μN
Electric quadrupole moment	-0.01 ±0.11 b

Point at nuclide Decay chain of Rubidium-88

89RbRubidium-89

Classification	z: 37; n: 52; m: 89
Half life	15.32 ±10 m
Natural abundance	synthetic nuclide
Spin/parity	3/2-
Decay modes	β⁻ decay
Discovery	1940
Mass excess	-81,720 ±5.427 keV
Binding energy	8,664 ±0.061 keV
Single-particle energy	9,310 ±6.02 keV
Neutron separation energy	7,174 ±5.429 keV
Q value for electron capture	-5,177 ±5.834 keV
β⁻ decay energy	4,496 ±5.426 keV
β⁻ decay energy with neutron	-1,863 ±5.426 keV
Magnetic dipole moment	2.383 ±7·10^-4 μN
Electric quadrupole moment	0.17 ±0.03 b

Point at nuclide Decay chain of Rubidium-89

90RbRubidium-90

Classification	z: 37; n: 53; m: 90
Half life	158 ±5 s
Natural abundance	synthetic nuclide
Spin/parity	0-
Decay modes	β⁻ decay
Discovery	1951
Mass excess	-79,370 ±6.452 keV
Binding energy	8,631 ±0.0717 keV
Single-particle energy	10,110 ±6.798 keV
Neutron separation energy	5,724 ±8.43 keV
Q value for electron capture	-4,407 ±6.716 keV
β⁻ decay energy	6,585 ±6.48 keV
β⁻ decay energy with neutron	-1,228 ±6.452 keV
Magnetic dipole moment	1.615 ±6·10^-4 μN
Electric quadrupole moment	0.25 ±0.07 b

Point at nuclide Decay chain of Rubidium-90

91RbRubidium-91

Classification	z: 37; n: 54; m: 91
Half life	58.2 ±3 s
Natural abundance	synthetic nuclide
Spin/parity	3/2(-)
Decay modes	β⁻ decay
Discovery	1951
Mass excess	-77,750 ±7.801 keV
Binding energy	8,607 ±0.0857 keV
Single-particle energy	10,070 ±8.02 keV
Neutron separation energy	6,450 ±10.12 keV
Q value for electron capture	-6,772 ±8.115 keV
β⁻ decay energy	5,906 ±8.873 keV
β⁻ decay energy with neutron	134.5 ±7.934 keV
Magnetic dipole moment	2.181 ±0.0015 μN
Electric quadrupole moment	0.19 ±0.05 b

Point at nuclide Decay chain of Rubidium-91

92RbRubidium-92

Classification	z: 37; n: 55; m: 92
Half life	4.48 ±3 s
Natural abundance	synthetic nuclide
Spin/parity	0-
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	1960
Mass excess	-74,780 ±6.123 keV
Binding energy	8,569 ±0.0666 keV
Single-particle energy	11,080 ±6.518 keV
Neutron separation energy	5,098 ±9.819 keV
Q value for electron capture	-6,004 ±6.692 keV
β⁻ decay energy	8,094 ±6.418 keV
β⁻ decay energy with neutron	808.1 ±7.584 keV

Point at nuclide Decay chain of Rubidium-92

93RbRubidium-93

Classification	z: 37; n: 56; m: 93
Half life	5.84 ±2 s
Natural abundance	synthetic nuclide
Spin/parity	5/2-
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	1960
Mass excess	-72,620 ±7.83 keV
Binding energy	8,540 ±0.0842 keV
Single-particle energy	11,130 ±8.283 keV
Neutron separation energy	5,918 ±9.934 keV
Q value for electron capture	-8,484 ±8.224 keV
β⁻ decay energy	7,465 ±8.876 keV
β⁻ decay energy with neutron	2,176 ±8.545 keV
Magnetic dipole moment	1.409 ±0.0016 μN
Electric quadrupole moment	0.21 ±0.06 b

Point at nuclide Decay chain of Rubidium-93

94RbRubidium-94

Classification	z: 37; n: 57; m: 94
Half life	2.702 ±5 s
Natural abundance	synthetic nuclide
Spin/parity	3(-)
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	1961
Mass excess	-68,570 ±2.029 keV
Binding energy	8,492 ±0.0216 keV
Single-particle energy	11,710 ±3.231 keV
Neutron separation energy	4,014 ±8.088 keV
Q value for electron capture	-7,216 ±12.27 keV
β⁻ decay energy	10,280 ±2.623 keV
β⁻ decay energy with neutron	3,451 ±7.821 keV
Magnetic dipole moment	1.498 ±0.0018 μN
Electric quadrupole moment	0.2 ±0.07 b

Point at nuclide Decay chain of Rubidium-94

95RbRubidium-95

Classification	z: 37; n: 58; m: 95
Half life	377.7 ±8 ms
Natural abundance	synthetic nuclide
Spin/parity	5/2-
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	1967
Mass excess	-65,900 ±20.24 keV
Binding energy	8,460 ±0.2131 keV
Single-particle energy	11,830 ±23.59 keV
Neutron separation energy	5,398 ±20.3 keV
Q value for electron capture	-9,732 ±27.51 keV
β⁻ decay energy	9,226 ±20.2 keV
β⁻ decay energy with neutron	4,884 ±20.31 keV
Magnetic dipole moment	1.333 ±0.003 μN
Electric quadrupole moment	0.26 ±0.09 b

Point at nuclide Decay chain of Rubidium-95

96RbRubidium-96

Classification	z: 37; n: 59; m: 96
Half life	203 ±3 ms
Natural abundance	synthetic nuclide
Spin/parity	2(-)
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	1967
Mass excess	-61,360 ±3.353 keV
Binding energy	8,408 ±0.0349 keV
Single-particle energy	12,480 ±18.92 keV
Neutron separation energy	3,535 ±20.41 keV
Q value for electron capture	-8,273 ±19.56 keV
β⁻ decay energy	11,560 ±9.106 keV
β⁻ decay energy with neutron	5,691 ±6.694 keV
Magnetic dipole moment	1.465 ±0.0017 μN
Electric quadrupole moment	0.3 ±0.09 b

Point at nuclide Decay chain of Rubidium-96

97RbRubidium-97

Classification	z: 37; n: 60; m: 97
Half life	169.1 ±6 ms
Natural abundance	synthetic nuclide
Spin/parity	3/2+
Decay modes	β⁻ decay; β⁻ decay with neutron emission; β⁻ decay with two-neutron emission
Discovery	1969
Mass excess	-58,520 ±1.912 keV
Binding energy	8,376 ±0.0197 keV
Single-particle energy	12,720 ±19.37 keV
Neutron separation energy	5,236 ±3.858 keV
Q value for electron capture	-11,100 ±130.4 keV
β⁻ decay energy	10,060 ±3.887 keV
β⁻ decay energy with neutron	6,327 ±8.679 keV
Magnetic dipole moment	1.84 ±0.002 μN
Electric quadrupole moment	0.7015 b

Point at nuclide Decay chain of Rubidium-97

98RbRubidium-98

Classification	z: 37; n: 61; m: 98
Half life	115 ±6 ms
Natural abundance	synthetic nuclide
Spin/parity	0(-)
Decay modes	β⁻ decay; β⁻ decay with neutron emission; β⁻ decay with two-neutron emission
Discovery	1971
Mass excess	-54,370 ±16.08 keV
Binding energy	8,330 ±0.1641 keV
Single-particle energy	14,230 ±131.3 keV
Neutron separation energy	3,921 ±16.19 keV
Q value for electron capture	-10,250 ±300.4 keV
β⁻ decay energy	12,050 ±16.4 keV
β⁻ decay energy with neutron	6,140 ±16.43 keV
Magnetic dipole moment	1.784 ±0.001 μN

Point at nuclide Decay chain of Rubidium-98

99RbRubidium-99

Classification	z: 37; n: 62; m: 99
Half life	54 ±4 ms
Natural abundance	synthetic nuclide
Spin/parity	(3/2+)
Decay modes	β⁻ decay; β⁻ decay with neutron emission; β⁻ decay with two-neutron emission
Discovery	1971
Mass excess	-51,130 ±4.031 keV
Binding energy	8,295 ±0.0407 keV
Single-particle energy	14,290 ±300 keV
Neutron separation energy	4,823 ±16.58 keV
Q value for electron capture	-12,730 ±400 keV
β⁻ decay energy	11,390 ±6.22 keV
β⁻ decay energy with neutron	7,229 ±5.162 keV

Point at nuclide Decay chain of Rubidium-99

100RbRubidium-100

Classification	z: 37; n: 63; m: 100
Half life	52 ±2 ms
Natural abundance	synthetic nuclide
Spin/parity	(4-)
Decay modes	β⁻ decay; β⁻ decay with neutron emission; β⁻ decay with two-neutron emission
Discovery	1978
Mass excess	-46,270 ±13.12 keV
Binding energy	8,244 ±0.1312 keV
Single-particle energy	15,150 ±400 keV
Neutron separation energy	3,216 ±13.72 keV
Q value for electron capture	-11,800 ±400.2 keV
β⁻ decay energy	13,550 ±14.83 keV
β⁻ decay energy with neutron	8,181 ±13.95 keV

Point at nuclide Decay chain of Rubidium-100

101RbRubidium-101

Classification	z: 37; n: 64; m: 101
Half life	32 ±5 ms
Natural abundance	synthetic nuclide
Spin/parity	(3/2+)
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	1992
Mass excess	-42,570 ±20.49 keV
Binding energy	8,206 ±0.2029 keV
Single-particle energy	15,380 ±400 keV
Neutron separation energy	4,372 ±24.33 keV
Q value for electron capture	-13,990 ±500.4 keV
β⁻ decay energy	12,750 ±22.17 keV
β⁻ decay energy with neutron	9,178 ±21.62 keV

Point at nuclide Decay chain of Rubidium-101

102RbRubidium-102

Classification	z: 37; n: 65; m: 102
Half life	37 ±5 ms
Natural abundance	synthetic nuclide
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	1995
Mass excess	-37,260 ±82.9 keV
Binding energy	8,152 ±0.8128 keV
Single-particle energy	15,960 ±507 keV
Neutron separation energy	2,756 ±85.39 keV
β⁻ decay energy	14,900 ±106.6 keV
β⁻ decay energy with neutron	10,000 ±83.33 keV

Point at nuclide Decay chain of Rubidium-102

103RbRubidium-103

Classification	z: 37; n: 66; m: 103
Half life	23 ± ms
Natural abundance	synthetic nuclide
Decay modes	β⁻ decay; β⁻ decay with neutron emission; β⁻ decay with two-neutron emission
Discovery	2010
Mass excess	-33,160 ±400 keV
Binding energy	8,112 ±4 keV
Neutron separation energy	3,979 ±408 keV
β⁻ decay energy	14,120 ±447 keV
β⁻ decay energy with neutron	10,920 ±405 keV

Point at nuclide Decay chain of Rubidium-103

104RbRubidium-104

Classification	z: 37; n: 67; m: 104
Half life	stable nuclide
Natural abundance	synthetic nuclide
Discovery	2018
Mass excess	-27,450 ±500 keV
Binding energy	8,057 ±5 keV
Neutron separation energy	2,361 ±640 keV
β⁻ decay energy	16,310 ±583 keV
β⁻ decay energy with neutron	11,750 ±539 keV

Point at nuclide

105RbRubidium-105

Classification	z: 37; n: 68; m: 105
Half life	stable nuclide
Natural abundance	synthetic nuclide

Point at nuclide

106RbRubidium-106

Classification	z: 37; n: 69; m: 106
Half life	stable nuclide
Natural abundance	synthetic nuclide

Point at nuclide

Isotopes of Rubidium

72RbRubidium-72ads_clickcall_splitdownload

73RbRubidium-73ads_clickcall_splitdownload

74RbRubidium-74ads_clickcall_splitdownload

75RbRubidium-75ads_clickcall_splitdownload

76RbRubidium-76ads_clickcall_splitdownload

77RbRubidium-77ads_clickcall_splitdownload

78RbRubidium-78ads_clickcall_splitdownload

79RbRubidium-79ads_clickcall_splitdownload

80RbRubidium-80ads_clickcall_splitdownload

81RbRubidium-81ads_clickcall_splitdownload

82RbRubidium-82ads_clickcall_splitdownload

83RbRubidium-83ads_clickcall_splitdownload

84RbRubidium-84ads_clickcall_splitdownload

85RbRubidium-85ads_clickdownload

86RbRubidium-86ads_clickcall_splitdownload

87RbRubidium-87ads_clickcall_splitdownload

88RbRubidium-88ads_clickcall_splitdownload

89RbRubidium-89ads_clickcall_splitdownload

90RbRubidium-90ads_clickcall_splitdownload

91RbRubidium-91ads_clickcall_splitdownload

92RbRubidium-92ads_clickcall_splitdownload

93RbRubidium-93ads_clickcall_splitdownload

94RbRubidium-94ads_clickcall_splitdownload

95RbRubidium-95ads_clickcall_splitdownload

96RbRubidium-96ads_clickcall_splitdownload

97RbRubidium-97ads_clickcall_splitdownload

98RbRubidium-98ads_clickcall_splitdownload

99RbRubidium-99ads_clickcall_splitdownload

100RbRubidium-100ads_clickcall_splitdownload

101RbRubidium-101ads_clickcall_splitdownload

102RbRubidium-102ads_clickcall_splitdownload

103RbRubidium-103ads_clickcall_splitdownload

104RbRubidium-104ads_clickdownload

105RbRubidium-105ads_clickdownload

106RbRubidium-106ads_clickdownload

72RbRubidium-72

73RbRubidium-73

74RbRubidium-74

75RbRubidium-75

76RbRubidium-76

77RbRubidium-77

78RbRubidium-78

79RbRubidium-79

80RbRubidium-80

81RbRubidium-81

82RbRubidium-82

83RbRubidium-83

84RbRubidium-84

85RbRubidium-85

86RbRubidium-86

87RbRubidium-87

88RbRubidium-88

89RbRubidium-89

90RbRubidium-90

91RbRubidium-91

92RbRubidium-92

93RbRubidium-93

94RbRubidium-94

95RbRubidium-95

96RbRubidium-96

97RbRubidium-97

98RbRubidium-98

99RbRubidium-99

100RbRubidium-100

101RbRubidium-101

102RbRubidium-102

103RbRubidium-103

104RbRubidium-104

105RbRubidium-105

106RbRubidium-106