Isotopes of Europium

List of known isotopes of the element Europium.

Isotope	t½	%	Spin/parity	Radius	Isotopic mass	Discovery
¹³⁰Eu	0.9 ± ms	syn.	(1+)	—	1.299·10⁸ ±578 keV/c²	2004
¹³¹Eu	17.8 ±19 ms	syn.	3/2+	—	1.309·10⁸ ±429 keV/c²	1998
¹³²Eu	stab.	syn.	—	—	1.319·10⁸ ±429 keV/c²	—
¹³⁴Eu	0.5 ±2 s	syn.	—	—	1.339·10⁸ ±322 keV/c²	1989
¹³⁵Eu	1.5 ±2 s	syn.	—	—	1.349·10⁸ ±210 keV/c²	1989
¹³⁶Eu	3.3 ±3 s	syn.	(7+)	—	1.359·10⁸ ±210 keV/c²	1987
¹³⁷Eu	11 ±2 s	syn.	(11/2-)	4.976 ±0.0095 fm	1.369·10⁸ ±4.7 keV/c²	1982
¹³⁸Eu	12.1 ±6 s	syn.	(6-)	4.977 ±0.0094 fm	1.379·10⁸ ±30 keV/c²	1982
¹³⁹Eu	17.9 ±6 s	syn.	(11/2)-	4.976 ±0.0093 fm	1.389·10⁸ ±14.11 keV/c²	1975
¹⁴⁰Eu	1.51 ±2 s	syn.	1+	4.969 ±0.0091 fm	1.399·10⁸ ±55.32 keV/c²	1982
¹⁴¹Eu	40.7 ±7 s	syn.	5/2+	4.969 ±0.0091 fm	1.409·10⁸ ±13.56 keV/c²	1977
¹⁴²Eu	2.34 ±12 s	syn.	1+	4.96 ±0.0091 fm	1.419·10⁸ ±32.26 keV/c²	1966
¹⁴³Eu	2.59 ±2 m	syn.	5/2+	4.963 ±0.0091 fm	1.429·10⁸ ±11.79 keV/c²	1965
¹⁴⁴Eu	10.2 ±1 s	syn.	1+	4.961 ±0.0091 fm	1.439·10⁸ ±11.58 keV/c²	1965
¹⁴⁵Eu	5.93 ±4 d	syn.	5/2+	4.966 ±0.0091 fm	1.449·10⁸ ±3.285 keV/c²	1951
¹⁴⁶Eu	4.61 ±3 d	syn.	4-	4.978 ±0.0092 fm	1.459·10⁸ ±6.451 keV/c²	1957
¹⁴⁷Eu	24.1 ±6 d	syn.	5/2+	4.993 ±0.0094 fm	1.469·10⁸ ±2.758 keV/c²	1951
¹⁴⁸Eu	54.5 ±5 d	syn.	5-	5.004 ±0.0097 fm	1.479·10⁸ ±10.69 keV/c²	1951
¹⁴⁹Eu	93.1 ±4 d	syn.	5/2+	5.02 ±0.0103 fm	1.489·10⁸ ±4.19 keV/c²	1959
¹⁵⁰Eu	36.9 ±9 a	syn.	5-	5.029 ±0.0108 fm	1.499·10⁸ ±6.688 keV/c²	1950
¹⁵¹Eu	1.7·10¹⁸ a	47.81 ±0.06 %	5/2+	5.052 ±0.0046 fm	1.509·10⁸ ±1.251 keV/c²	1933
¹⁵²Eu	13.51 ±9 a	syn.	3-	5.106 ±0.0066 fm	1.519·10⁸ ±1.252 keV/c²	1938
¹⁵³Eu	stab.	52.19 ±0.06 %	5/2+	5.111 ±0.0062 fm	1.529·10⁸ ±1.257 keV/c²	1933
¹⁵⁴Eu	8.601 ±10 a	syn.	3-	5.123 ±0.0079 fm	1.539·10⁸ ±1.275 keV/c²	1947
¹⁵⁵Eu	4.753 ±14 a	syn.	5/2+	5.122 ±0.0069 fm	1.549·10⁸ ±1.343 keV/c²	1947
¹⁵⁶Eu	15.19 ±8 d	syn.	0+	5.126 ±0.0071 fm	1.559·10⁸ ±3.791 keV/c²	1947
¹⁵⁷Eu	15.18 ±3 h	syn.	5/2+	5.135 ±0.0075 fm	1.569·10⁸ ±4.545 keV/c²	1951
¹⁵⁸Eu	45.9 ±2 m	syn.	(1-)	5.141 ±0.0078 fm	1.579·10⁸ ±2.181 keV/c²	1951
¹⁵⁹Eu	18.1 ±1 m	syn.	5/2+	5.149 ±0.0084 fm	1.589·10⁸ ±4.637 keV/c²	1961
¹⁶⁰Eu	42.6 ±5 s	syn.	(5-)	—	1.599·10⁸ ±0.97 keV/c²	1973
¹⁶¹Eu	26 ±3 s	syn.	—	—	1.609·10⁸ ±11.16 keV/c²	1986
¹⁶²Eu	10.6 ±10 s	syn.	—	—	1.619·10⁸ ±1.41 keV/c²	1987
¹⁶³Eu	7.7 ±4 s	syn.	—	—	1.629·10⁸ ±0.97 keV/c²	2007
¹⁶⁴Eu	4.15 ±20 s	syn.	(3)	—	1.639·10⁸ ±2.219 keV/c²	2007
¹⁶⁵Eu	2.3 ±2 s	syn.	—	—	1.649·10⁸ ±5.596 keV/c²	2007
¹⁶⁶Eu	1.7 ±3 s	syn.	—	—	1.659·10⁸ ±107 keV/c²	2007
¹⁶⁷Eu	1.3 ±5 s	syn.	(5/2+)	—	1.669·10⁸ ±429 keV/c²	2012
¹⁶⁸Eu	0.2 ±10 s	syn.	(6-)	—	1.679·10⁸ ±429 keV/c²	2012
¹⁶⁹Eu	stab.	syn.	—	—	1.689·10⁸ ±537 keV/c²	2018

130EuEuropium-130

Classification	z: 63; n: 67; m: 130
Half life	0.9 ± ms
Natural abundance	synthetic nuclide
Spin/parity	(1+)
Decay modes	proton emission
Discovery	2004
Mass excess	-33,520 ±539 keV
Binding energy	7,950 ±4 keV
Single-particle energy	-1,528 ±200 keV
Q value for electron capture	14,180 ±671.2 keV

Point at nuclide Decay chain of Europium-130

131EuEuropium-131

Classification	z: 63; n: 68; m: 131
Half life	17.8 ±19 ms
Natural abundance	synthetic nuclide
Spin/parity	3/2+
Decay modes	proton emission; electron capture + β⁺ decay
Discovery	1998
Mass excess	-39,470 ±400 keV
Binding energy	7,996 ±3 keV
Single-particle energy	-947.1 ±5.268 keV
Neutron separation energy	14,020 ±671 keV
Q value for electron capture	10,810 ±565.6 keV

Point at nuclide Decay chain of Europium-131

132EuEuropium-132

Classification	z: 63; n: 69; m: 132
Half life	stable nuclide
Natural abundance	synthetic nuclide
Mass excess	-42,200 ±400 keV
Binding energy	8,018 ±3 keV
Single-particle energy	-791 ±565 keV
Neutron separation energy	10,800 ±565 keV
Q value for electron capture	12,940 ±500 keV

Point at nuclide

134EuEuropium-134

Classification	z: 63; n: 71; m: 134
Half life	0.5 ±2 s
Natural abundance	synthetic nuclide
Decay modes	electron capture + β⁺ decay; electron capture + proton emission
Discovery	1989
Mass excess	-49,800 ±300 keV
Binding energy	8,075 ±2 keV
Single-particle energy	-142 ±423 keV
Neutron separation energy	10,630 ±423 keV
Q value for electron capture	11,570 ±358.3 keV
β⁻ decay energy	-8,271 ±500 keV
β⁻ decay energy with neutron	-21,820 ±583 keV

Point at nuclide Decay chain of Europium-134

135EuEuropium-135

Classification	z: 63; n: 72; m: 135
Half life	1.5 ±2 s
Natural abundance	synthetic nuclide
Decay modes	electron capture + β⁺ decay; electron capture + proton emission
Discovery	1989
Mass excess	-54,150 ±196 keV
Binding energy	8,107 ±1 keV
Single-particle energy	61 ±277 keV
Neutron separation energy	12,410 ±358 keV
Q value for electron capture	8,709 ±249.6 keV
β⁻ decay energy	-9,898 ±445 keV
β⁻ decay energy with neutron	-20,690 ±445 keV

Point at nuclide Decay chain of Europium-135

136EuEuropium-136

Classification	z: 63; n: 73; m: 136
Half life	3.3 ±3 s
Natural abundance	synthetic nuclide
Spin/parity	(7+)
Decay modes	electron capture + β⁺ decay; β⁺ decay + proton emission
Discovery	1987
Mass excess	-56,250 ±196 keV
Binding energy	8,122 ±1 keV
Single-particle energy	675 ±249 keV
Neutron separation energy	10,160 ±277 keV
Q value for electron capture	10,560 ±196.3 keV
β⁻ decay energy	-7,154 ±357 keV
β⁻ decay energy with neutron	-20,070 ±445 keV

Point at nuclide Decay chain of Europium-136

137EuEuropium-137

Classification	z: 63; n: 74; m: 137
Half life	11 ±2 s
Natural abundance	synthetic nuclide
Spin/parity	(11/2-)
Decay modes	electron capture + β⁺ decay
Discovery	1982
Mass excess	-60,150 ±4.378 keV
Binding energy	8,150 ±0.032 keV
Single-particle energy	623.9 ±13.24 keV
Neutron separation energy	11,970 ±196 keV
Q value for electron capture	7,845 ±28.94 keV
β⁻ decay energy	-8,932 ±298 keV
β⁻ decay energy with neutron	-19,130 ±298 keV

Point at nuclide Decay chain of Europium-137

138EuEuropium-138

Classification	z: 63; n: 75; m: 138
Half life	12.1 ±6 s
Natural abundance	synthetic nuclide
Spin/parity	(6-)
Decay modes	electron capture + β⁺ decay
Discovery	1982
Mass excess	-61,750 ±27.94 keV
Binding energy	8,161 ±0.2025 keV
Single-particle energy	1,046 ±39.99 keV
Neutron separation energy	9,675 ±28.28 keV
Q value for electron capture	9,748 ±30.34 keV
β⁻ decay energy	-6,090 ±202 keV
β⁻ decay energy with neutron	-18,610 ±299 keV
Magnetic dipole moment	5.3 ±0.7 μN

Point at nuclide Decay chain of Europium-138

139EuEuropium-139

Classification	z: 63; n: 76; m: 139
Half life	17.9 ±6 s
Natural abundance	synthetic nuclide
Spin/parity	(11/2)-
Decay modes	electron capture + β⁺ decay
Discovery	1975
Mass excess	-65,400 ±13.15 keV
Binding energy	8,187 ±0.0946 keV
Single-particle energy	1,189 ±17.68 keV
Neutron separation energy	11,710 ±30.88 keV
Q value for electron capture	6,982 ±17.07 keV
β⁻ decay energy	-7,767 ±196 keV
β⁻ decay energy with neutron	-17,810 ±201 keV
Magnetic dipole moment	6.1 ±0.8 μN

Point at nuclide Decay chain of Europium-139

140EuEuropium-140

Classification	z: 63; n: 77; m: 140
Half life	1.51 ±2 s
Natural abundance	synthetic nuclide
Spin/parity	1+
Decay modes	electron capture + β⁺ decay
Discovery	1982
Mass excess	-66,990 ±51.53 keV
Binding energy	8,197 ±0.3681 keV
Single-particle energy	1,894 ±52.67 keV
Neutron separation energy	9,659 ±53.18 keV
Q value for electron capture	8,470 ±53 keV
β⁻ decay energy	-5,204 ±58.62 keV
β⁻ decay energy with neutron	-17,430 ±202 keV
Magnetic dipole moment	1.362 ±0.013 μN

Point at nuclide Decay chain of Europium-140

141EuEuropium-141

Classification	z: 63; n: 78; m: 141
Half life	40.7 ±7 s
Natural abundance	synthetic nuclide
Spin/parity	5/2+
Decay modes	electron capture + β⁺ decay
Discovery	1977
Mass excess	-69,930 ±12.63 keV
Binding energy	8,217 ±0.0896 keV
Single-particle energy	1,758 ±17.77 keV
Neutron separation energy	11,010 ±53.06 keV
Q value for electron capture	6,008 ±15.25 keV
β⁻ decay energy	-6,702 ±23.45 keV
β⁻ decay energy with neutron	-16,220 ±30.67 keV
Magnetic dipole moment	3.486 ±0.008 μN
Electric quadrupole moment	0.85 ±0.04 b

Point at nuclide Decay chain of Europium-141

142EuEuropium-142

Classification	z: 63; n: 79; m: 142
Half life	2.34 ±12 s
Natural abundance	synthetic nuclide
Spin/parity	1+
Decay modes	electron capture + β⁺ decay
Discovery	1966
Mass excess	-71,310 ±30.05 keV
Binding energy	8,226 ±0.2117 keV
Single-particle energy	2,663 ±31.21 keV
Neutron separation energy	9,454 ±32.6 keV
Q value for electron capture	7,673 ±30.1 keV
β⁻ decay energy	-4,350 ±41.04 keV
β⁻ decay energy with neutron	-16,160 ±35.97 keV
Magnetic dipole moment	1.532 ±0.019 μN
Electric quadrupole moment	0.12 ±0.05 b

Point at nuclide Decay chain of Europium-142

143EuEuropium-143

Classification	z: 63; n: 80; m: 143
Half life	2.59 ±2 m
Natural abundance	synthetic nuclide
Spin/parity	5/2+
Decay modes	electron capture + β⁺ decay
Discovery	1965
Mass excess	-74,250 ±10.98 keV
Binding energy	8,245 ±0.0768 keV
Single-particle energy	2,548 ±11.14 keV
Neutron separation energy	11,000 ±32 keV
Q value for electron capture	5,275 ±11.32 keV
β⁻ decay energy	-6,010 ±200 keV
β⁻ decay energy with neutron	-15,360 ±30.02 keV
Magnetic dipole moment	3.664 ±0.008 μN
Electric quadrupole moment	0.51 ±0.03 b

Point at nuclide Decay chain of Europium-143

144EuEuropium-144

Classification	z: 63; n: 81; m: 144
Half life	10.2 ±1 s
Natural abundance	synthetic nuclide
Spin/parity	1+
Decay modes	electron capture + β⁺ decay
Discovery	1965
Mass excess	-75,620 ±10.78 keV
Binding energy	8,254 ±0.0749 keV
Single-particle energy	3,391 ±11.05 keV
Neutron separation energy	9,449 ±15.39 keV
Q value for electron capture	6,346 ±10.88 keV
β⁻ decay energy	-3,860 ±29.95 keV
β⁻ decay energy with neutron	-15,460 ±200.5 keV
Magnetic dipole moment	1.888 ±0.013 μN
Electric quadrupole moment	0.1 ±0.03 b

Point at nuclide Decay chain of Europium-144

145EuEuropium-145

Classification	z: 63; n: 82; m: 145
Half life	5.93 ±4 d
Natural abundance	synthetic nuclide
Spin/parity	5/2+
Decay modes	electron capture + β⁺ decay
Discovery	1951
Mass excess	-78,000 ±3.06 keV
Binding energy	8,269 ±0.0211 keV
Single-particle energy	3,314 ±2.707 keV
Neutron separation energy	10,440 ±11.14 keV
Q value for electron capture	2,659 ±3.401 keV
β⁻ decay energy	-5,065 ±19.95 keV
β⁻ decay energy with neutron	-14,310 ±28.11 keV
Magnetic dipole moment	3.983 ±0.007 μN
Electric quadrupole moment	0.29 ±0.02 b

Point at nuclide Decay chain of Europium-145

146EuEuropium-146

Classification	z: 63; n: 83; m: 146
Half life	4.61 ±3 d
Natural abundance	synthetic nuclide
Spin/parity	4-
Decay modes	electron capture + β⁺ decay
Discovery	1957
Mass excess	-77,120 ±6.009 keV
Binding energy	8,261 ±0.0412 keV
Single-particle energy	3,755 ±5.953 keV
Neutron separation energy	7,197 ±6.533 keV
Q value for electron capture	3,878 ±6.736 keV
β⁻ decay energy	-1,032 ±7.075 keV
β⁻ decay energy with neutron	-12,270 ±20.61 keV
Magnetic dipole moment	1.422 ±0.011 μN
Electric quadrupole moment	-0.18 ±0.06 b

Point at nuclide Decay chain of Europium-146

147EuEuropium-147

Classification	z: 63; n: 84; m: 147
Half life	24.1 ±6 d
Natural abundance	synthetic nuclide
Spin/parity	5/2+
Decay modes	electron capture (EC); α decay
Discovery	1951
Mass excess	-77,550 ±2.569 keV
Binding energy	8,263 ±0.0175 keV
Single-particle energy	3,837 ±3.611 keV
Neutron separation energy	8,498 ±6.353 keV
Q value for electron capture	1,721 ±2.862 keV
β⁻ decay energy	-2,188 ±2.527 keV
β⁻ decay energy with neutron	-9,531 ±4.502 keV
Magnetic dipole moment	3.715 ±0.008 μN
Electric quadrupole moment	0.55 ±0.03 b

Point at nuclide Decay chain of Europium-147

148EuEuropium-148

Classification	z: 63; n: 85; m: 148
Half life	54.5 ±5 d
Natural abundance	synthetic nuclide
Spin/parity	5-
Decay modes	electron capture + β⁺ decay; α decay
Discovery	1951
Mass excess	-76,300 ±9.961 keV
Binding energy	8,253 ±0.0673 keV
Single-particle energy	4,320 ±9.967 keV
Neutron separation energy	6,824 ±10.19 keV
Q value for electron capture	3,038 ±10.03 keV
β⁻ decay energy	-28.07 ±9.963 keV
β⁻ decay energy with neutron	-9,012 ±10.03 keV
Magnetic dipole moment	2.334 ±0.01 μN
Electric quadrupole moment	0.35 ±0.06 b

Point at nuclide Decay chain of Europium-148

149EuEuropium-149

Classification	z: 63; n: 86; m: 149
Half life	93.1 ±4 d
Natural abundance	synthetic nuclide
Spin/parity	5/2+
Decay modes	electron capture (EC)
Discovery	1959
Mass excess	-76,450 ±3.903 keV
Binding energy	8,253 ±0.0262 keV
Single-particle energy	4,394 ±3.831 keV
Neutron separation energy	8,215 ±10.64 keV
Q value for electron capture	694.5 ±4.071 keV
β⁻ decay energy	-1,315 ±4.136 keV
β⁻ decay energy with neutron	-8,244 ±3.876 keV
Magnetic dipole moment	3.556 ±0.006 μN
Electric quadrupole moment	0.75 ±0.02 b

Point at nuclide Decay chain of Europium-149

150EuEuropium-150

Classification	z: 63; n: 87; m: 150
Half life	36.9 ±9 a
Natural abundance	synthetic nuclide
Spin/parity	5-
Decay modes	electron capture + β⁺ decay
Discovery	1950
Mass excess	-74,800 ±6.231 keV
Binding energy	8,241 ±0.0415 keV
Single-particle energy	4,945 ±6.187 keV
Neutron separation energy	6,422 ±7.213 keV
Q value for electron capture	2,258 ±6.329 keV
β⁻ decay energy	971.6 ±3.542 keV
β⁻ decay energy with neutron	-7,737 ±6.906 keV
Magnetic dipole moment	2.702 ±0.011 μN
Electric quadrupole moment	1.13 ±0.05 b

Point at nuclide Decay chain of Europium-150

151EuEuropium-151

Classification	z: 63; n: 88; m: 151
Half life	1.7·10¹⁸ a
Natural abundance	47.81 ±0.06 %
Spin/parity	5/2+
Decay modes	α decay
Discovery	1933
Mass excess	-74,660 ±1.166 keV
Binding energy	8,239 ±0.0077 keV
Single-particle energy	4,890 ±0.5472 keV
Neutron separation energy	7,932 ±6.178 keV
Q value for electron capture	-76.62 ±1.61 keV
β⁻ decay energy	-464.2 ±2.779 keV
β⁻ decay energy with neutron	-6,961 ±6.011 keV
Magnetic dipole moment	3.463 ±0.0025 μN
Electric quadrupole moment	0.903 ±0.01 b

Point at nuclide Decay chain of Europium-151

152EuEuropium-152

Classification	z: 63; n: 89; m: 152
Half life	13.51 ±9 a
Natural abundance	synthetic nuclide
Spin/parity	3-
Decay modes	electron capture + β⁺ decay; β⁻ decay
Discovery	1938
Mass excess	-72,890 ±1.166 keV
Binding energy	8,226 ±0.0077 keV
Single-particle energy	5,600 ±0.5432 keV
Neutron separation energy	6,306 ±0.0997 keV
Q value for electron capture	1,874 ±1.547 keV
β⁻ decay energy	1,818 ±0.7002 keV
β⁻ decay energy with neutron	-6,771 ±2.78 keV
Magnetic dipole moment	-1.936 ±0.0017 μN
Electric quadrupole moment	2.72 ±0.03 b

Point at nuclide Decay chain of Europium-152

153EuEuropium-153

Classification	z: 63; n: 90; m: 153
Half life	stable nuclide
Natural abundance	52.19 ±0.06 %
Spin/parity	5/2+
Discovery	1933
Mass excess	-73,370 ±1.171 keV
Binding energy	8,228 ±0.0077 keV
Single-particle energy	5,893 ±0.6935 keV
Neutron separation energy	8,550 ±0.1198 keV
Q value for electron capture	-807.5 ±1.556 keV
β⁻ decay energy	-484.6 ±0.715 keV
β⁻ decay energy with neutron	-6,732 ±0.7077 keV
Magnetic dipole moment	1.529 ±0.0011 μN
Electric quadrupole moment	2.41 ±0.02 b

Point at nuclide

154EuEuropium-154

Classification	z: 63; n: 91; m: 154
Half life	8.601 ±10 a
Natural abundance	synthetic nuclide
Spin/parity	3-
Decay modes	β⁻ decay; electron capture + β⁺ decay
Discovery	1947
Mass excess	-71,740 ±1.188 keV
Binding energy	8,217 ±0.0077 keV
Single-particle energy	6,467 ±0.7354 keV
Neutron separation energy	6,442 ±0.2384 keV
Q value for electron capture	717.1 ±1.765 keV
β⁻ decay energy	1,967 ±0.7535 keV
β⁻ decay energy with neutron	-6,927 ±0.7429 keV
Magnetic dipole moment	-2 ±0.006 μN
Electric quadrupole moment	2.85 ±0.1 b

Point at nuclide Decay chain of Europium-154

155EuEuropium-155

Classification	z: 63; n: 92; m: 155
Half life	4.753 ±14 a
Natural abundance	synthetic nuclide
Spin/parity	5/2+
Decay modes	β⁻ decay
Discovery	1947
Mass excess	-71,820 ±1.252 keV
Binding energy	8,216 ±0.0081 keV
Single-particle energy	6,651 ±1.171 keV
Neutron separation energy	8,151 ±0.3996 keV
Q value for electron capture	-1,628 ±1.828 keV
β⁻ decay energy	251.9 ±0.8682 keV
β⁻ decay energy with neutron	-6,184 ±0.8517 keV
Magnetic dipole moment	1.516 ±0.002 μN
Electric quadrupole moment	2.5 ±0.3 b

Point at nuclide Decay chain of Europium-155

156EuEuropium-156

Classification	z: 63; n: 93; m: 156
Half life	15.19 ±8 d
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay
Discovery	1947
Mass excess	-70,090 ±3.532 keV
Binding energy	8,204 ±0.0226 keV
Single-particle energy	7,180 ±3.51 keV
Neutron separation energy	6,335 ±3.394 keV
Q value for electron capture	-722.2 ±9.225 keV
β⁻ decay energy	2,452 ±3.408 keV
β⁻ decay energy with neutron	-6,084 ±3.408 keV

Point at nuclide Decay chain of Europium-156

157EuEuropium-157

Classification	z: 63; n: 94; m: 157
Half life	15.18 ±3 h
Natural abundance	synthetic nuclide
Spin/parity	5/2+
Decay modes	β⁻ decay
Discovery	1951
Mass excess	-69,460 ±4.234 keV
Binding energy	8,199 ±0.027 keV
Single-particle energy	7,387 ±9.425 keV
Neutron separation energy	7,447 ±5.351 keV
Q value for electron capture	-2,782 ±6.13 keV
β⁻ decay energy	1,364 ±4.197 keV
β⁻ decay energy with neutron	-4,996 ±4.199 keV
Magnetic dipole moment	1.5 ±0.02 μN
Electric quadrupole moment	2.6 ±0.3 b

Point at nuclide Decay chain of Europium-157

158EuEuropium-158

Classification	z: 63; n: 95; m: 158
Half life	45.9 ±2 m
Natural abundance	synthetic nuclide
Spin/parity	(1-)
Decay modes	β⁻ decay
Discovery	1951
Mass excess	-67,280 ±2.032 keV
Binding energy	8,185 ±0.0129 keV
Single-particle energy	7,881 ±4.876 keV
Neutron separation energy	5,882 ±4.696 keV
Q value for electron capture	-2,019 ±5.196 keV
β⁻ decay energy	3,419 ±2.254 keV
β⁻ decay energy with neutron	-4,518 ±2.254 keV
Magnetic dipole moment	1.44 ±0.02 μN
Electric quadrupole moment	0.66 ±0.14 b

Point at nuclide Decay chain of Europium-158

159EuEuropium-159

Classification	z: 63; n: 96; m: 159
Half life	18.1 ±1 m
Natural abundance	synthetic nuclide
Spin/parity	5/2+
Decay modes	β⁻ decay
Discovery	1961
Mass excess	-66,050 ±4.32 keV
Binding energy	8,176 ±0.0272 keV
Single-particle energy	8,080 ±6.424 keV
Neutron separation energy	6,844 ±4.773 keV
Q value for electron capture	-3,836 ±7.34 keV
β⁻ decay energy	2,518 ±4.365 keV
β⁻ decay energy with neutron	-3,425 ±4.364 keV
Magnetic dipole moment	1.38 ±0.02 μN
Electric quadrupole moment	2.7 ±0.3 b

Point at nuclide Decay chain of Europium-159

160EuEuropium-160

Classification	z: 63; n: 97; m: 160
Half life	42.6 ±5 s
Natural abundance	synthetic nuclide
Spin/parity	(5-)
Decay modes	β⁻ decay
Discovery	1973
Mass excess	-63,500 ±0.904 keV
Binding energy	8,160 ±0.0057 keV
Single-particle energy	8,574 ±6.002 keV
Neutron separation energy	5,521 ±4.413 keV
Q value for electron capture	-3,261 ±2.155 keV
β⁻ decay energy	4,448 ±1.441 keV
β⁻ decay energy with neutron	-3,003 ±1.332 keV

Point at nuclide Decay chain of Europium-160

161EuEuropium-161

Classification	z: 63; n: 98; m: 161
Half life	26 ±3 s
Natural abundance	synthetic nuclide
Decay modes	β⁻ decay
Discovery	1986
Mass excess	-61,800 ±10.4 keV
Binding energy	8,148 ±0.0646 keV
Single-particle energy	8,847 ±10.58 keV
Neutron separation energy	6,369 ±10.43 keV
Q value for electron capture	-5,120 ±12.43 keV
β⁻ decay energy	3,714 ±10.5 keV
β⁻ decay energy with neutron	-1,921 ±10.45 keV

Point at nuclide Decay chain of Europium-161

162EuEuropium-162

Classification	z: 63; n: 99; m: 162
Half life	10.6 ±10 s
Natural abundance	synthetic nuclide
Decay modes	β⁻ decay
Discovery	1987
Mass excess	-58,730 ±1.314 keV
Binding energy	8,129 ±0.0081 keV
Single-particle energy	9,339 ±6.942 keV
Neutron separation energy	5,002 ±10.48 keV
Q value for electron capture	-4,344 ±3.76 keV
β⁻ decay energy	5,557 ±4.174 keV
β⁻ decay energy with neutron	-1,289 ±1.997 keV

Point at nuclide Decay chain of Europium-162

163EuEuropium-163

Classification	z: 63; n: 100; m: 163
Half life	7.7 ±4 s
Natural abundance	synthetic nuclide
Decay modes	β⁻ decay
Discovery	2007
Mass excess	-56,580 ±0.904 keV
Binding energy	8,116 ±0.0056 keV
Single-particle energy	9,483 ±3.637 keV
Neutron separation energy	5,922 ±1.594 keV
Q value for electron capture	-5,975 ±7.414 keV
β⁻ decay energy	4,814 ±1.204 keV
β⁻ decay energy with neutron	-364.5 ±4.064 keV

Point at nuclide Decay chain of Europium-163

164EuEuropium-164

Classification	z: 63; n: 101; m: 164
Half life	4.15 ±20 s
Natural abundance	synthetic nuclide
Spin/parity	(3)
Decay modes	β⁻ decay
Discovery	2007
Mass excess	-53,240 ±2.068 keV
Binding energy	8,095 ±0.0126 keV
Single-particle energy	9,921 ±7.643 keV
Neutron separation energy	4,729 ±2.256 keV
Q value for electron capture	-5,307 ±4.591 keV
β⁻ decay energy	6,461 ±2.296 keV
β⁻ decay energy with neutron	85.12 ±2.216 keV

Point at nuclide Decay chain of Europium-164

165EuEuropium-165

Classification	z: 63; n: 102; m: 165
Half life	2.3 ±2 s
Natural abundance	synthetic nuclide
Decay modes	β⁻ decay
Discovery	2007
Mass excess	-50,730 ±5.213 keV
Binding energy	8,080 ±0.0316 keV
Single-particle energy	10,090 ±6.631 keV
Neutron separation energy	5,568 ±5.607 keV
Q value for electron capture	-7,220 ±400 keV
β⁻ decay energy	5,796 ±5.373 keV
β⁻ decay energy with neutron	893.2 ±5.307 keV

Point at nuclide Decay chain of Europium-165

166EuEuropium-166

Classification	z: 63; n: 103; m: 166
Half life	1.7 ±3 s
Natural abundance	synthetic nuclide
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	2007
Mass excess	-46,750 ±100 keV
Binding energy	8,056 ±1 keV
Single-particle energy	10,520 ±412 keV
Neutron separation energy	4,091 ±100 keV
Q value for electron capture	-6,299 ±412.3 keV
β⁻ decay energy	7,622 ±100 keV
β⁻ decay energy with neutron	1,706 ±100 keV

Point at nuclide Decay chain of Europium-166

167EuEuropium-167

Classification	z: 63; n: 104; m: 167
Half life	1.3 ±5 s
Natural abundance	synthetic nuclide
Spin/parity	(5/2+)
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	2012
Mass excess	-43,770 ±400 keV
Binding energy	8,038 ±2 keV
Single-particle energy	10,600 ±565 keV
Neutron separation energy	5,092 ±412 keV
Q value for electron capture	-8,440 ±640.3 keV
β⁻ decay energy	7,006 ±400 keV
β⁻ decay energy with neutron	2,530 ±400 keV

Point at nuclide Decay chain of Europium-167

168EuEuropium-168

Classification	z: 63; n: 105; m: 168
Half life	0.2 ±10 s
Natural abundance	synthetic nuclide
Spin/parity	(6-)
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	2012
Mass excess	-39,250 ±400 keV
Binding energy	8,012 ±2 keV
Single-particle energy	11,210 ±640 keV
Neutron separation energy	3,552 ±565 keV
Q value for electron capture	-7,610 ±500 keV
β⁻ decay energy	8,899 ±500 keV
β⁻ decay energy with neutron	3,454 ±400 keV

Point at nuclide Decay chain of Europium-168

169EuEuropium-169

Classification	z: 63; n: 106; m: 169
Half life	stable nuclide
Natural abundance	synthetic nuclide
Discovery	2018
Mass excess	-35,660 ±500 keV
Binding energy	7,991 ±3 keV
Single-particle energy	11,300 ±583 keV
Neutron separation energy	4,481 ±640 keV
β⁻ decay energy	8,230 ±640 keV
β⁻ decay energy with neutron	4,418 ±583 keV

Point at nuclide

Isotopes of Europium

130EuEuropium-130ads_clickcall_splitdownload

131EuEuropium-131ads_clickcall_splitdownload

132EuEuropium-132ads_clickdownload

134EuEuropium-134ads_clickcall_splitdownload

135EuEuropium-135ads_clickcall_splitdownload

136EuEuropium-136ads_clickcall_splitdownload

137EuEuropium-137ads_clickcall_splitdownload

138EuEuropium-138ads_clickcall_splitdownload

139EuEuropium-139ads_clickcall_splitdownload

140EuEuropium-140ads_clickcall_splitdownload

141EuEuropium-141ads_clickcall_splitdownload

142EuEuropium-142ads_clickcall_splitdownload

143EuEuropium-143ads_clickcall_splitdownload

144EuEuropium-144ads_clickcall_splitdownload

145EuEuropium-145ads_clickcall_splitdownload

146EuEuropium-146ads_clickcall_splitdownload

147EuEuropium-147ads_clickcall_splitdownload

148EuEuropium-148ads_clickcall_splitdownload

149EuEuropium-149ads_clickcall_splitdownload

150EuEuropium-150ads_clickcall_splitdownload

151EuEuropium-151ads_clickcall_splitdownload

152EuEuropium-152ads_clickcall_splitdownload

153EuEuropium-153ads_clickdownload

154EuEuropium-154ads_clickcall_splitdownload

155EuEuropium-155ads_clickcall_splitdownload

156EuEuropium-156ads_clickcall_splitdownload

157EuEuropium-157ads_clickcall_splitdownload

158EuEuropium-158ads_clickcall_splitdownload

159EuEuropium-159ads_clickcall_splitdownload

160EuEuropium-160ads_clickcall_splitdownload

161EuEuropium-161ads_clickcall_splitdownload

162EuEuropium-162ads_clickcall_splitdownload

163EuEuropium-163ads_clickcall_splitdownload

164EuEuropium-164ads_clickcall_splitdownload

165EuEuropium-165ads_clickcall_splitdownload

166EuEuropium-166ads_clickcall_splitdownload

167EuEuropium-167ads_clickcall_splitdownload

168EuEuropium-168ads_clickcall_splitdownload

169EuEuropium-169ads_clickdownload

130EuEuropium-130

131EuEuropium-131

132EuEuropium-132

134EuEuropium-134

135EuEuropium-135

136EuEuropium-136

137EuEuropium-137

138EuEuropium-138

139EuEuropium-139

140EuEuropium-140

141EuEuropium-141

142EuEuropium-142

143EuEuropium-143

144EuEuropium-144

145EuEuropium-145

146EuEuropium-146

147EuEuropium-147

148EuEuropium-148

149EuEuropium-149

150EuEuropium-150

151EuEuropium-151

152EuEuropium-152

153EuEuropium-153

154EuEuropium-154

155EuEuropium-155

156EuEuropium-156

157EuEuropium-157

158EuEuropium-158

159EuEuropium-159

160EuEuropium-160

161EuEuropium-161

162EuEuropium-162

163EuEuropium-163

164EuEuropium-164

165EuEuropium-165

166EuEuropium-166

167EuEuropium-167

168EuEuropium-168

169EuEuropium-169