Isotopes of Erbium

List of known isotopes of the element Erbium.

Isotope	t½	%	Spin/parity	Radius	Isotopic mass	Discovery
¹⁴³Er	stab.	syn.	—	—	1.429·10⁸ ±429 keV/c²	2005
¹⁴⁴Er	200 ns	syn.	0+	—	1.439·10⁸ ±210 keV/c²	2003
¹⁴⁵Er	stab.	syn.	(1/2+)	—	1.449·10⁸ ±215 keV/c²	1989
¹⁴⁶Er	1.7 ±6 s	syn.	0+	—	1.459·10⁸ ±7.197 keV/c²	1993
¹⁴⁷Er	3.2 ±12 s	syn.	(1/2+)	—	1.469·10⁸ ±41 keV/c²	1992
¹⁴⁸Er	4.6 ±2 s	syn.	0+	—	1.479·10⁸ ±11 keV/c²	1982
¹⁴⁹Er	4 ±2 s	syn.	(1/2+)	—	1.489·10⁸ ±30 keV/c²	1984
¹⁵⁰Er	18.5 ±7 s	syn.	0+	5.054 ±0.0254 fm	1.499·10⁸ ±18.45 keV/c²	1982
¹⁵¹Er	23.5 ±20 s	syn.	(7/2-)	—	1.509·10⁸ ±17.68 keV/c²	1970
¹⁵²Er	10.3 ±1 s	syn.	0+	5.084 ±0.0257 fm	1.519·10⁸ ±9.478 keV/c²	1963
¹⁵³Er	37.1 ±2 s	syn.	(7/2-)	—	1.529·10⁸ ±9.967 keV/c²	1963
¹⁵⁴Er	3.73 ±9 m	syn.	0+	5.112 ±0.0268 fm	1.539·10⁸ ±5.325 keV/c²	1963
¹⁵⁵Er	5.3 ±3 m	syn.	7/2-	—	1.549·10⁸ ±6.52 keV/c²	1969
¹⁵⁶Er	19.5 ±10 m	syn.	0+	5.142 ±0.0285 fm	1.559·10⁸ ±26.44 keV/c²	1967
¹⁵⁷Er	18.65 ±10 m	syn.	3/2-	—	1.569·10⁸ ±28.45 keV/c²	1966
¹⁵⁸Er	2.29 ±6 h	syn.	0+	5.176 ±0.0312 fm	1.579·10⁸ ±27.07 keV/c²	1961
¹⁵⁹Er	36 ±1 m	syn.	3/2-	—	1.589·10⁸ ±3.91 keV/c²	1962
¹⁶⁰Er	28.58 ±9 h	syn.	0+	5.204 ±0.0336 fm	1.599·10⁸ ±26.02 keV/c²	1954
¹⁶¹Er	3.21 ±3 h	syn.	3/2-	—	1.609·10⁸ ±9.419 keV/c²	1954
¹⁶²Er	stab.	0.139 ±0.005 %	0+	5.224 ±0.004 fm	1.619·10⁸ ±0.811 keV/c²	1938
¹⁶³Er	75 ±4 m	syn.	5/2-	—	1.629·10⁸ ±4.967 keV/c²	1953
¹⁶⁴Er	stab.	1.601 ±0.003 %	0+	5.238 ±0.0035 fm	1.639·10⁸ ±0.755 keV/c²	1938
¹⁶⁵Er	10.36 ±4 h	syn.	5/2-	—	1.649·10⁸ ±0.985 keV/c²	1950
¹⁶⁶Er	stab.	33.5 ±0.036 %	0+	5.251 ±0.0031 fm	1.659·10⁸ ±0.358 keV/c²	1934
¹⁶⁷Er	stab.	22.86 ±0.009 %	7/2+	5.256 ±0.0031 fm	1.669·10⁸ ±0.306 keV/c²	1934
¹⁶⁸Er	stab.	26.97 ±0.018 %	0+	5.264 ±0.0035 fm	1.679·10⁸ ±0.28 keV/c²	1934
¹⁶⁹Er	9.392 ±18 d	syn.	1/2-	—	1.689·10⁸ ±0.326 keV/c²	1956
¹⁷⁰Er	stab.	14.91 ±0.036 %	0+	5.278 ±0.0041 fm	1.699·10⁸ ±1.488 keV/c²	1934
¹⁷¹Er	7.516 ±2 h	syn.	5/2-	—	1.709·10⁸ ±1.511 keV/c²	1938
¹⁷²Er	49.3 ±5 h	syn.	0+	—	1.719·10⁸ ±4.253 keV/c²	1956
¹⁷³Er	1.4 ±1 m	syn.	(7/2-)	—	1.729·10⁸ ±210 keV/c²	1972
¹⁷⁴Er	3.2 ±2 m	syn.	0+	—	1.739·10⁸ ±320 keV/c²	1989
¹⁷⁵Er	1.2 ±3 m	syn.	(9/2+)	—	1.749·10⁸ ±430 keV/c²	1996
¹⁷⁶Er	160 ns	syn.	0+	—	1.759·10⁸ ±430 keV/c²	2012
¹⁷⁷Er	stab.	syn.	(1/2-)	—	1.769·10⁸ ±540 keV/c²	2012
¹⁷⁸Er	160 ns	syn.	0+	—	1.779·10⁸ ±640 keV/c²	2012
¹⁷⁹Er	stab.	syn.	—	—	1.789·10⁸ ±537 keV/c²	2018
¹⁸⁰Er	stab.	syn.	0+	—	1.799·10⁸ ±537 keV/c²	2018

143ErErbium-143

Classification	z: 68; n: 75; m: 143
Half life	stable nuclide
Natural abundance	synthetic nuclide
Discovery	2005
Mass excess	-31,160 ±400 keV
Binding energy	7,917 ±3 keV
Single-particle energy	1,199 ±566 keV
Neutron separation energy	11,300 ±640 keV
Q value for electron capture	10,880 ±498.8 keV

Point at nuclide

144ErErbium-144

Classification	z: 68; n: 76; m: 144
Half life	200 ns
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture + β⁺ decay
Discovery	2003
Mass excess	-36,610 ±196 keV
Binding energy	7,956 ±1 keV
Single-particle energy	1,849 ±357 keV
Neutron separation energy	13,510 ±445 keV
Q value for electron capture	8,001 ±196.1 keV
β⁻ decay energy	-14,450 ±445 keV

Point at nuclide Decay chain of Erbium-144

145ErErbium-145

Classification	z: 68; n: 77; m: 145
Half life	stable nuclide
Natural abundance	synthetic nuclide
Spin/parity	(1/2+)
Discovery	1989
Mass excess	-39,240 ±200 keV
Binding energy	7,975 ±1 keV
Single-particle energy	1,920 ±200 keV
Neutron separation energy	10,700 ±280 keV
Q value for electron capture	9,880 ±200.1 keV
β⁻ decay energy	-11,660 ±280 keV
β⁻ decay energy with neutron	-25,160 ±447 keV

Point at nuclide

146ErErbium-146

Classification	z: 68; n: 78; m: 146
Half life	1.7 ±6 s
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture + β⁺ decay
Discovery	1993
Mass excess	-44,330 ±6.705 keV
Binding energy	8,010 ±0.0459 keV
Single-particle energy	2,490 ±10.02 keV
Neutron separation energy	13,150 ±200 keV
Q value for electron capture	6,916 ±9.399 keV
β⁻ decay energy	-13,270 ±200 keV
β⁻ decay energy with neutron	-24,820 ±196 keV

Point at nuclide Decay chain of Erbium-146

147ErErbium-147

Classification	z: 68; n: 79; m: 147
Half life	3.2 ±12 s
Natural abundance	synthetic nuclide
Spin/parity	(1/2+)
Decay modes	electron capture + β⁺ decay; β⁺ decay + proton emission
Discovery	1992
Mass excess	-46,610 ±38.19 keV
Binding energy	8,026 ±0.2598 keV
Single-particle energy	2,658 ±38.75 keV
Neutron separation energy	10,350 ±38.77 keV
Q value for electron capture	9,149 ±38.51 keV
β⁻ decay energy	-10,640 ±38.79 keV
β⁻ decay energy with neutron	-23,630 ±204 keV

Point at nuclide Decay chain of Erbium-147

148ErErbium-148

Classification	z: 68; n: 80; m: 148
Half life	4.6 ±2 s
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture + β⁺ decay; electron capture + proton emission
Discovery	1982
Mass excess	-51,480 ±10.24 keV
Binding energy	8,059 ±0.0692 keV
Single-particle energy	3,010 ±11.4 keV
Neutron separation energy	12,940 ±39.54 keV
Q value for electron capture	6,512 ±84.45 keV
β⁻ decay energy	-12,720 ±14.49 keV
β⁻ decay energy with neutron	-23,580 ±12.31 keV

Point at nuclide Decay chain of Erbium-148

149ErErbium-149

Classification	z: 68; n: 81; m: 149
Half life	4 ±2 s
Natural abundance	synthetic nuclide
Spin/parity	(1/2+)
Decay modes	electron capture + β⁺ decay; electron capture + proton emission
Discovery	1984
Mass excess	-53,750 ±27.94 keV
Binding energy	8,074 ±0.1875 keV
Single-particle energy	3,039 ±88.36 keV
Neutron separation energy	10,330 ±29.76 keV
Q value for electron capture	7,904 ±30.4 keV
β⁻ decay energy	-9,801 ±202 keV
β⁻ decay energy with neutron	-23,050 ±29.76 keV

Point at nuclide Decay chain of Erbium-149

150ErErbium-150

Classification	z: 68; n: 82; m: 150
Half life	18.5 ±7 s
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture + β⁺ decay
Discovery	1982
Mass excess	-57,840 ±17.19 keV
Binding energy	8,102 ±0.1146 keV
Single-particle energy	3,474 ±20.95 keV
Neutron separation energy	12,160 ±32.81 keV
Q value for electron capture	4,114 ±22.27 keV
β⁻ decay energy	-11,340 ±196 keV
β⁻ decay energy with neutron	-21,970 ±201 keV

Point at nuclide Decay chain of Erbium-150

151ErErbium-151

Classification	z: 68; n: 83; m: 151
Half life	23.5 ±20 s
Natural abundance	synthetic nuclide
Spin/parity	(7/2-)
Decay modes	electron capture + β⁺ decay
Discovery	1970
Mass excess	-58,270 ±16.47 keV
Binding energy	8,104 ±0.1091 keV
Single-particle energy	3,609 ±21.72 keV
Neutron separation energy	8,506 ±23.8 keV
Q value for electron capture	5,356 ±18.44 keV
β⁻ decay energy	-7,495 ±25.42 keV
β⁻ decay energy with neutron	-19,850 ±196 keV

Point at nuclide Decay chain of Erbium-151

152ErErbium-152

Classification	z: 68; n: 84; m: 152
Half life	10.3 ±1 s
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay; electron capture + β⁺ decay
Discovery	1963
Mass excess	-60,510 ±8.83 keV
Binding energy	8,119 ±0.0581 keV
Single-particle energy	4,166 ±12.1 keV
Neutron separation energy	10,300 ±18.68 keV
Q value for electron capture	3,104 ±15.32 keV
β⁻ decay energy	-8,780 ±54.74 keV
β⁻ decay energy with neutron	-17,800 ±21.28 keV

Point at nuclide Decay chain of Erbium-152

153ErErbium-153

Classification	z: 68; n: 85; m: 153
Half life	37.1 ±2 s
Natural abundance	synthetic nuclide
Spin/parity	(7/2-)
Decay modes	α decay; electron capture + β⁺ decay
Discovery	1963
Mass excess	-60,470 ±9.285 keV
Binding energy	8,118 ±0.0607 keV
Single-particle energy	4,151 ±15.14 keV
Neutron separation energy	8,037 ±12.2 keV
Q value for electron capture	4,545 ±10.57 keV
β⁻ decay energy	-6,495 ±12.88 keV
β⁻ decay energy with neutron	-16,820 ±54.81 keV
Magnetic dipole moment	-0.932 ±0.007 μN
Electric quadrupole moment	-0.42 ±0.02 b

Point at nuclide Decay chain of Erbium-153

154ErErbium-154

Classification	z: 68; n: 86; m: 154
Half life	3.73 ±9 m
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture + β⁺ decay; α decay
Discovery	1963
Mass excess	-62,610 ±4.961 keV
Binding energy	8,132 ±0.0322 keV
Single-particle energy	4,881 ±6.817 keV
Neutron separation energy	10,200 ±10.36 keV
Q value for electron capture	2,034 ±9.598 keV
β⁻ decay energy	-8,178 ±14.91 keV
β⁻ decay energy with neutron	-16,710 ±12.91 keV
Magnetic dipole moment	0.167 ±0.013 μN

Point at nuclide Decay chain of Erbium-154

155ErErbium-155

Classification	z: 68; n: 87; m: 155
Half life	5.3 ±3 m
Natural abundance	synthetic nuclide
Spin/parity	7/2-
Decay modes	electron capture + β⁺ decay; α decay
Discovery	1969
Mass excess	-62,210 ±6.074 keV
Binding energy	8,129 ±0.0392 keV
Single-particle energy	4,858 ±10.08 keV
Neutron separation energy	7,675 ±7.589 keV
Q value for electron capture	3,830 ±18.49 keV
β⁻ decay energy	-5,584 ±11.51 keV
β⁻ decay energy with neutron	-15,860 ±15.6 keV
Magnetic dipole moment	-0.666 ±0.005 μN
Electric quadrupole moment	-0.27 ±0.02 b

Point at nuclide Decay chain of Erbium-155

156ErErbium-156

Classification	z: 68; n: 88; m: 156
Half life	19.5 ±10 m
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture + β⁺ decay; α decay
Discovery	1967
Mass excess	-64,220 ±24.62 keV
Binding energy	8,141 ±0.1579 keV
Single-particle energy	5,460 ±30.19 keV
Neutron separation energy	10,070 ±25.36 keV
Q value for electron capture	1,326 ±45.64 keV
β⁻ decay energy	-7,378 ±26.7 keV
β⁻ decay energy with neutron	-15,660 ±26.55 keV

Point at nuclide Decay chain of Erbium-156

157ErErbium-157

Classification	z: 68; n: 89; m: 157
Half life	18.65 ±10 m
Natural abundance	synthetic nuclide
Spin/parity	3/2-
Decay modes	electron capture + β⁺ decay
Discovery	1966
Mass excess	-63,420 ±26.5 keV
Binding energy	8,136 ±0.1688 keV
Single-particle energy	5,164 ±46.67 keV
Neutron separation energy	7,273 ±36.18 keV
Q value for electron capture	3,419 ±35.4 keV
β⁻ decay energy	-4,705 ±38.51 keV
β⁻ decay energy with neutron	-14,660 ±30.1 keV
Magnetic dipole moment	-0.411 ±0.003 μN
Electric quadrupole moment	0.92 ±0.01 b

Point at nuclide Decay chain of Erbium-157

158ErErbium-158

Classification	z: 68; n: 90; m: 158
Half life	2.29 ±6 h
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture (EC)
Discovery	1961
Mass excess	-65,310 ±25.21 keV
Binding energy	8,147 ±0.1596 keV
Single-particle energy	5,759 ±34.45 keV
Neutron separation energy	9,961 ±36.58 keV
Q value for electron capture	883.5 ±37.02 keV
β⁻ decay energy	-6,601 ±31.34 keV
β⁻ decay energy with neutron	-14,670 ±37.64 keV

Point at nuclide Decay chain of Erbium-158

159ErErbium-159

Classification	z: 68; n: 91; m: 159
Half life	36 ±1 m
Natural abundance	synthetic nuclide
Spin/parity	3/2-
Decay modes	electron capture + β⁺ decay
Discovery	1962
Mass excess	-64,570 ±3.643 keV
Binding energy	8,142 ±0.0229 keV
Single-particle energy	5,662 ±27.33 keV
Neutron separation energy	7,328 ±25.48 keV
Q value for electron capture	2,768 ±4.7 keV
β⁻ decay energy	-3,991 ±28.18 keV
β⁻ decay energy with neutron	-13,930 ±25.48 keV
Magnetic dipole moment	-0.303 ±0.002 μN
Electric quadrupole moment	1.17 ±0.01 b

Point at nuclide Decay chain of Erbium-159

160ErErbium-160

Classification	z: 68; n: 92; m: 160
Half life	28.58 ±9 h
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture (EC)
Discovery	1954
Mass excess	-66,070 ±24.24 keV
Binding energy	8,151 ±0.1515 keV
Single-particle energy	6,023 ±24.43 keV
Neutron separation energy	9,574 ±24.51 keV
Q value for electron capture	318.2 ±28.51 keV
β⁻ decay energy	-5,764 ±39.13 keV
β⁻ decay energy with neutron	-13,570 ±36.99 keV

Point at nuclide Decay chain of Erbium-160

161ErErbium-161

Classification	z: 68; n: 93; m: 161
Half life	3.21 ±3 h
Natural abundance	synthetic nuclide
Spin/parity	3/2-
Decay modes	electron capture + β⁺ decay
Discovery	1954
Mass excess	-65,210 ±8.774 keV
Binding energy	8,145 ±0.0545 keV
Single-particle energy	6,107 ±17.36 keV
Neutron separation energy	7,208 ±25.78 keV
Q value for electron capture	1,994 ±9.034 keV
β⁻ decay energy	-3,303 ±29.28 keV
β⁻ decay energy with neutron	-12,980 ±33.84 keV
Magnetic dipole moment	-0.364 ±0.003 μN
Electric quadrupole moment	1.363 ±0.008 b

Point at nuclide Decay chain of Erbium-161

162ErErbium-162

Classification	z: 68; n: 94; m: 162
Half life	stable nuclide
Natural abundance	0.139 ±0.005 %
Spin/parity	0+
Discovery	1938
Mass excess	-66,340 ±0.756 keV
Binding energy	8,152 ±0.0047 keV
Single-particle energy	6,426 ±2.158 keV
Neutron separation energy	9,204 ±8.741 keV
Q value for electron capture	-293.7 ±3.193 keV
β⁻ decay energy	-4,857 ±26.04 keV
β⁻ decay energy with neutron	-12,510 ±27.95 keV

Point at nuclide

163ErErbium-163

Classification	z: 68; n: 95; m: 163
Half life	75 ±4 m
Natural abundance	synthetic nuclide
Spin/parity	5/2-
Decay modes	electron capture + β⁺ decay
Discovery	1953
Mass excess	-65,170 ±4.628 keV
Binding energy	8,144 ±0.0284 keV
Single-particle energy	6,415 ±5.522 keV
Neutron separation energy	6,904 ±4.581 keV
Q value for electron capture	1,210 ±4.68 keV
β⁻ decay energy	-2,439 ±3 keV
β⁻ decay energy with neutron	-11,770 ±26.44 keV
Magnetic dipole moment	0.556 ±0.004 μN
Electric quadrupole moment	2.56 ±0.02 b

Point at nuclide Decay chain of Erbium-163

164ErErbium-164

Classification	z: 68; n: 96; m: 164
Half life	stable nuclide
Natural abundance	1.601 ±0.003 %
Spin/parity	0+
Discovery	1938
Mass excess	-65,950 ±0.704 keV
Binding energy	8,149 ±0.0043 keV
Single-particle energy	6,853 ±0.1336 keV
Neutron separation energy	8,846 ±4.576 keV
Q value for electron capture	-962.1 ±1.558 keV
β⁻ decay energy	-4,034 ±25.01 keV
β⁻ decay energy with neutron	-11,290 ±5.472 keV
Magnetic dipole moment	2.7 ±0.4 μN

Point at nuclide

165ErErbium-165

Classification	z: 68; n: 97; m: 165
Half life	10.36 ±4 h
Natural abundance	synthetic nuclide
Spin/parity	5/2-
Decay modes	electron capture (EC)
Discovery	1950
Mass excess	-64,530 ±0.918 keV
Binding energy	8,139 ±0.0056 keV
Single-particle energy	6,829 ±1.495 keV
Neutron separation energy	6,650 ±0.5878 keV
Q value for electron capture	376.6 ±1.209 keV
β⁻ decay energy	-1,592 ±1.489 keV
β⁻ decay energy with neutron	-10,690 ±25.01 keV
Magnetic dipole moment	0.641 ±0.004 μN
Electric quadrupole moment	2.71 ±0.03 b

Point at nuclide Decay chain of Erbium-165

166ErErbium-166

Classification	z: 68; n: 98; m: 166
Half life	stable nuclide
Natural abundance	33.5 ±0.036 %
Spin/parity	0+
Discovery	1934
Mass excess	-64,930 ±0.334 keV
Binding energy	8,141 ±0.002 keV
Single-particle energy	7,315 ±0.7792 keV
Neutron separation energy	8,474 ±0.9506 keV
Q value for electron capture	-1,854 ±0.854 keV
β⁻ decay energy	-3,038 ±11.54 keV
β⁻ decay energy with neutron	-10,070 ±1.688 keV
Magnetic dipole moment	1.5 ±0.2 μN
Electric quadrupole moment	-1.9 ±0.4 b

Point at nuclide

167ErErbium-167

Classification	z: 68; n: 99; m: 167
Half life	stable nuclide
Natural abundance	22.86 ±0.009 %
Spin/parity	7/2+
Discovery	1934
Mass excess	-63,290 ±0.286 keV
Binding energy	8,131 ±0.0017 keV
Single-particle energy	7,507 ±0.7812 keV
Neutron separation energy	6,436 ±0.1787 keV
Q value for electron capture	-1,010 ±5.197 keV
β⁻ decay energy	-746.2 ±1.263 keV
β⁻ decay energy with neutron	-9,475 ±11.54 keV
Magnetic dipole moment	-0.5623 ±4·10^-4 μN
Electric quadrupole moment	3.57 ±0.03 b

Point at nuclide

168ErErbium-168

Classification	z: 68; n: 100; m: 168
Half life	stable nuclide
Natural abundance	26.97 ±0.018 %
Spin/parity	0+
Discovery	1934
Mass excess	-62,990 ±0.262 keV
Binding energy	8,129 ±0.0016 keV
Single-particle energy	7,998 ±5.187 keV
Neutron separation energy	7,771 ±0.1188 keV
Q value for electron capture	-2,930 ±30 keV
β⁻ decay energy	-1,677 ±1.685 keV
β⁻ decay energy with neutron	-8,518 ±1.27 keV
Magnetic dipole moment	0.96 ±0.04 μN
Electric quadrupole moment	-2.2 ±1 b

Point at nuclide

169ErErbium-169

Classification	z: 68; n: 101; m: 169
Half life	9.392 ±18 d
Natural abundance	synthetic nuclide
Spin/parity	1/2-
Decay modes	β⁻ decay
Discovery	1956
Mass excess	-60,930 ±0.304 keV
Binding energy	8,117 ±0.0018 keV
Single-particle energy	8,150 ±30 keV
Neutron separation energy	6,003 ±0.1543 keV
Q value for electron capture	-2,126 ±20.05 keV
β⁻ decay energy	353.4 ±0.7729 keV
β⁻ decay energy with neutron	-7,681 ±1.692 keV
Magnetic dipole moment	0.4828 ±4·10^-4 μN

Point at nuclide Decay chain of Erbium-169

170ErErbium-170

Classification	z: 68; n: 102; m: 170
Half life	stable nuclide
Natural abundance	14.91 ±0.036 %
Spin/parity	0+
Discovery	1934
Mass excess	-60,110 ±1.387 keV
Binding energy	8,111 ±0.0082 keV
Single-particle energy	8,600 ±20 keV
Neutron separation energy	7,257 ±1.39 keV
Q value for electron capture	-3,870 ±50 keV
β⁻ decay energy	-312.2 ±1.785 keV
β⁻ decay energy with neutron	-6,905 ±1.795 keV

Point at nuclide

171ErErbium-171

Classification	z: 68; n: 103; m: 171
Half life	7.516 ±2 h
Natural abundance	synthetic nuclide
Spin/parity	5/2-
Decay modes	β⁻ decay
Discovery	1938
Mass excess	-57,720 ±1.408 keV
Binding energy	8,097 ±0.0082 keV
Single-particle energy	8,769 ±50 keV
Neutron separation energy	5,681 ±0.3496 keV
Q value for electron capture	-3,200 ±600 keV
β⁻ decay energy	1,492 ±1.078 keV
β⁻ decay energy with neutron	-5,994 ±1.795 keV
Magnetic dipole moment	0.657 ±0.01 μN
Electric quadrupole moment	2.86 ±0.09 b

Point at nuclide Decay chain of Erbium-171

172ErErbium-172

Classification	z: 68; n: 104; m: 172
Half life	49.3 ±5 h
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay
Discovery	1956
Mass excess	-56,490 ±3.962 keV
Binding energy	8,090 ±0.023 keV
Single-particle energy	9,253 ±600 keV
Neutron separation energy	6,836 ±3.784 keV
Q value for electron capture	-4,999 ±196 keV
β⁻ decay energy	890.9 ±4.541 keV
β⁻ decay energy with neutron	-5,344 ±3.883 keV

Point at nuclide Decay chain of Erbium-172

173ErErbium-173

Classification	z: 68; n: 105; m: 173
Half life	1.4 ±1 m
Natural abundance	synthetic nuclide
Spin/parity	(7/2-)
Decay modes	β⁻ decay
Discovery	1972
Mass excess	-53,660 ±196 keV
Binding energy	8,074 ±1 keV
Single-particle energy	9,459 ±277 keV
Neutron separation energy	5,243 ±196 keV
Q value for electron capture	-4,303 ±356.6 keV
β⁻ decay energy	2,602 ±196 keV
β⁻ decay energy with neutron	-4,352 ±196 keV

Point at nuclide Decay chain of Erbium-173

174ErErbium-174

Classification	z: 68; n: 106; m: 174
Half life	3.2 ±2 m
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay
Discovery	1989
Mass excess	-51,950 ±298 keV
Binding energy	8,064 ±2 keV
Single-particle energy	9,888 ±422 keV
Neutron separation energy	6,367 ±357 keV
Q value for electron capture	-6,079 ±422.8 keV
β⁻ decay energy	1,915 ±301 keV
β⁻ decay energy with neutron	-3,765 ±298 keV

Point at nuclide Decay chain of Erbium-174

175ErErbium-175

Classification	z: 68; n: 107; m: 175
Half life	1.2 ±3 m
Natural abundance	synthetic nuclide
Spin/parity	(9/2+)
Decay modes	β⁻ decay
Discovery	1996
Mass excess	-48,660 ±401 keV
Binding energy	8,045 ±2 keV
Single-particle energy	10,070 ±500 keV
Neutron separation energy	4,774 ±499 keV
Q value for electron capture	-5,352 ±566.3 keV
β⁻ decay energy	3,659 ±404 keV
β⁻ decay energy with neutron	-2,859 ±403 keV

Point at nuclide Decay chain of Erbium-175

176ErErbium-176

Classification	z: 68; n: 108; m: 176
Half life	160 ns
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay
Discovery	2012
Mass excess	-46,640 ±401 keV
Binding energy	8,034 ±2 keV
Single-particle energy	10,620 ±566 keV
Neutron separation energy	6,050 ±566 keV
Q value for electron capture	-7,241 ±640.9 keV
β⁻ decay energy	2,741 ±413 keV
β⁻ decay energy with neutron	-2,391 ±404 keV

Point at nuclide Decay chain of Erbium-176

177ErErbium-177

Classification	z: 68; n: 109; m: 177
Half life	stable nuclide
Natural abundance	synthetic nuclide
Spin/parity	(1/2-)
Discovery	2012
Mass excess	-42,860 ±503 keV
Binding energy	8,013 ±3 keV
Single-particle energy	10,750 ±709 keV
Neutron separation energy	4,299 ±643 keV
Q value for electron capture	-6,578 ±709.2 keV
β⁻ decay energy	4,711 ±541 keV
β⁻ decay energy with neutron	-1,558 ±513 keV

Point at nuclide

178ErErbium-178

Classification	z: 68; n: 110; m: 178
Half life	160 ns
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay
Discovery	2012
Mass excess	-40,260 ±596 keV
Binding energy	7,999 ±3 keV
Single-particle energy	11,260 ±778 keV
Neutron separation energy	5,473 ±780 keV
Q value for electron capture	-8,130 ±777.9 keV
β⁻ decay energy	3,980 ±667 keV
β⁻ decay energy with neutron	-762 ±629 keV

Point at nuclide Decay chain of Erbium-178

179ErErbium-179

Classification	z: 68; n: 111; m: 179
Half life	stable nuclide
Natural abundance	synthetic nuclide
Discovery	2018
Mass excess	-36,080 ±500 keV
Binding energy	7,976 ±3 keV
Single-particle energy	11,230 ±707 keV
Neutron separation energy	3,891 ±778 keV
β⁻ decay energy	5,821 ±640 keV
β⁻ decay energy with neutron	90 ±583 keV

Point at nuclide

180ErErbium-180

Classification	z: 68; n: 112; m: 180
Half life	stable nuclide
Natural abundance	synthetic nuclide
Spin/parity	0+
Discovery	2018
Mass excess	-33,180 ±500 keV
Binding energy	7,960 ±3 keV
Neutron separation energy	5,172 ±707 keV
β⁻ decay energy	4,990 ±640 keV
β⁻ decay energy with neutron	649 ±640 keV

Point at nuclide

Isotopes of Erbium

143ErErbium-143ads_clickdownload

144ErErbium-144ads_clickcall_splitdownload

145ErErbium-145ads_clickdownload

146ErErbium-146ads_clickcall_splitdownload

147ErErbium-147ads_clickcall_splitdownload

148ErErbium-148ads_clickcall_splitdownload

149ErErbium-149ads_clickcall_splitdownload

150ErErbium-150ads_clickcall_splitdownload

151ErErbium-151ads_clickcall_splitdownload

152ErErbium-152ads_clickcall_splitdownload

153ErErbium-153ads_clickcall_splitdownload

154ErErbium-154ads_clickcall_splitdownload

155ErErbium-155ads_clickcall_splitdownload

156ErErbium-156ads_clickcall_splitdownload

157ErErbium-157ads_clickcall_splitdownload

158ErErbium-158ads_clickcall_splitdownload

159ErErbium-159ads_clickcall_splitdownload

160ErErbium-160ads_clickcall_splitdownload

161ErErbium-161ads_clickcall_splitdownload

162ErErbium-162ads_clickdownload

163ErErbium-163ads_clickcall_splitdownload

164ErErbium-164ads_clickdownload

165ErErbium-165ads_clickcall_splitdownload

166ErErbium-166ads_clickdownload

167ErErbium-167ads_clickdownload

168ErErbium-168ads_clickdownload

169ErErbium-169ads_clickcall_splitdownload

170ErErbium-170ads_clickdownload

171ErErbium-171ads_clickcall_splitdownload

172ErErbium-172ads_clickcall_splitdownload

173ErErbium-173ads_clickcall_splitdownload

174ErErbium-174ads_clickcall_splitdownload

175ErErbium-175ads_clickcall_splitdownload

176ErErbium-176ads_clickcall_splitdownload

177ErErbium-177ads_clickdownload

178ErErbium-178ads_clickcall_splitdownload

179ErErbium-179ads_clickdownload

180ErErbium-180ads_clickdownload

143ErErbium-143

144ErErbium-144

145ErErbium-145

146ErErbium-146

147ErErbium-147

148ErErbium-148

149ErErbium-149

150ErErbium-150

151ErErbium-151

152ErErbium-152

153ErErbium-153

154ErErbium-154

155ErErbium-155

156ErErbium-156

157ErErbium-157

158ErErbium-158

159ErErbium-159

160ErErbium-160

161ErErbium-161

162ErErbium-162

163ErErbium-163

164ErErbium-164

165ErErbium-165

166ErErbium-166

167ErErbium-167

168ErErbium-168

169ErErbium-169

170ErErbium-170

171ErErbium-171

172ErErbium-172

173ErErbium-173

174ErErbium-174

175ErErbium-175

176ErErbium-176

177ErErbium-177

178ErErbium-178

179ErErbium-179

180ErErbium-180