Isotopes of Gadolinium

List of known isotopes of the element Gadolinium.

Isotope	t½	%	Spin/parity	Radius	Isotopic mass	Discovery
¹³⁴Gd	stab.	syn.	0+	—	1.339·10⁸ ±429 keV/c²	—
¹³⁵Gd	1.1 ±2 s	syn.	(5/2+)	—	1.349·10⁸ ±429 keV/c²	1996
¹³⁶Gd	200 ns	syn.	0+	—	1.359·10⁸ ±320 keV/c²	2000
¹³⁷Gd	2.2 ±2 s	syn.	(7/2)	—	1.369·10⁸ ±320 keV/c²	1999
¹³⁸Gd	4.7 ±9 s	syn.	0+	—	1.379·10⁸ ±215 keV/c²	1985
¹³⁹Gd	5.8 ±9 s	syn.	(9/2-)	—	1.389·10⁸ ±210 keV/c²	1983
¹⁴⁰Gd	15.8 ±4 s	syn.	0+	—	1.399·10⁸ ±30 keV/c²	1985
¹⁴¹Gd	14 ±4 s	syn.	1/2+	—	1.409·10⁸ ±21.21 keV/c²	1986
¹⁴²Gd	70.2 ±6 s	syn.	0+	—	1.419·10⁸ ±30 keV/c²	1986
¹⁴³Gd	39 ±2 s	syn.	(1/2)+	—	1.429·10⁸ ±215 keV/c²	1975
¹⁴⁴Gd	4.47 ±6 m	syn.	0+	—	1.439·10⁸ ±30 keV/c²	1968
¹⁴⁵Gd	23 ±4 m	syn.	1/2+	4.978 ±0.0077 fm	1.449·10⁸ ±21.16 keV/c²	1959
¹⁴⁶Gd	48.27 ±9 d	syn.	0+	4.98 ±0.014 fm	1.459·10⁸ ±4.376 keV/c²	1957
¹⁴⁷Gd	38.06 ±12 h	syn.	7/2-	—	1.469·10⁸ ±2.025 keV/c²	1957
¹⁴⁸Gd	71.1 ±12 a	syn.	0+	5.008 ±0.0171 fm	1.479·10⁸ ±1.566 keV/c²	1953
¹⁴⁹Gd	9.28 ±10 d	syn.	7/2-	—	1.489·10⁸ ±3.553 keV/c²	1951
¹⁵⁰Gd	1.79·10⁶ ±8 a	syn.	0+	5.034 ±0.0159 fm	1.499·10⁸ ±6.5 keV/c²	1953
¹⁵¹Gd	123.9 ±10 d	syn.	7/2-	—	1.509·10⁸ ±3.212 keV/c²	1950
¹⁵²Gd	1.08·10¹⁴ ±8 a	0.2 ±0.03 %	0+	5.077 ±0.0048 fm	1.519·10⁸ ±1.081 keV/c²	1938
¹⁵³Gd	240.4 ±10 d	syn.	3/2-	—	1.529·10⁸ ±1.075 keV/c²	1947
¹⁵⁴Gd	stab.	2.18 ±0.02 %	0+	5.122 ±0.004 fm	1.539·10⁸ ±1.066 keV/c²	1938
¹⁵⁵Gd	stab.	14.8 ±0.09 %	3/2-	5.131 ±0.0041 fm	1.549·10⁸ ±1.055 keV/c²	1933
¹⁵⁶Gd	stab.	20.47 ±0.03 %	0+	5.142 ±0.0042 fm	1.559·10⁸ ±1.054 keV/c²	1933
¹⁵⁷Gd	stab.	15.65 ±0.04 %	3/2-	5.144 ±0.0042 fm	1.569·10⁸ ±1.048 keV/c²	1933
¹⁵⁸Gd	stab.	24.84 ±0.08 %	0+	5.156 ±0.0043 fm	1.579·10⁸ ±1.048 keV/c²	1933
¹⁵⁹Gd	18.47 ±4 h	syn.	3/2-	—	1.589·10⁸ ±1.051 keV/c²	1949
¹⁶⁰Gd	stab.	21.86 ±0.03 %	0+	5.173 ±0.0044 fm	1.599·10⁸ ±1.206 keV/c²	1933
¹⁶¹Gd	3.66 ±5 m	syn.	5/2-	—	1.609·10⁸ ±1.614 keV/c²	1949
¹⁶²Gd	8.4 ±2 m	syn.	0+	—	1.619·10⁸ ±4.254 keV/c²	1967
¹⁶³Gd	68 ±3 s	syn.	(5/2- 7/2+)	—	1.629·10⁸ ±0.855 keV/c²	1982
¹⁶⁴Gd	45 ±3 s	syn.	0+	—	1.639·10⁸ ±1.073 keV/c²	1988
¹⁶⁵Gd	10.3 ±16 s	syn.	—	—	1.649·10⁸ ±1.4 keV/c²	1998
¹⁶⁶Gd	4.8 ±10 s	syn.	0+	—	1.659·10⁸ ±1.7 keV/c²	2005
¹⁶⁷Gd	4.26 ± s	syn.	(5/2-)	—	1.669·10⁸ ±5.596 keV/c²	2012
¹⁶⁸Gd	3.03 ±16 s	syn.	0+	—	1.679·10⁸ ±322 keV/c²	1985
¹⁶⁹Gd	0.75 ±21 s	syn.	(7/2-)	—	1.689·10⁸ ±429 keV/c²	2012
¹⁷⁰Gd	0.41 ± s	syn.	0+	—	1.699·10⁸ ±537 keV/c²	2012
¹⁷¹Gd	stab.	syn.	—	—	1.709·10⁸ ±537 keV/c²	2018
¹⁷²Gd	stab.	syn.	0+	—	1.719·10⁸ ±322 keV/c²	2018

134GdGadolinium-134

Classification	z: 64; n: 70; m: 134
Half life	stable nuclide
Natural abundance	synthetic nuclide
Spin/parity	0+
Mass excess	-41,530 ±400 keV
Binding energy	8,008 ±3 keV
Single-particle energy	1,583 ±499 keV
Neutron separation energy	13,540 ±640 keV
Q value for electron capture	8,270 ±500 keV

Point at nuclide

135GdGadolinium-135

Classification	z: 64; n: 71; m: 135
Half life	1.1 ±2 s
Natural abundance	synthetic nuclide
Spin/parity	(5/2+)
Decay modes	electron capture + β⁺ decay; electron capture + proton emission
Discovery	1996
Mass excess	-44,250 ±400 keV
Binding energy	8,028 ±3 keV
Single-particle energy	1,738 ±500 keV
Neutron separation energy	10,790 ±565 keV
Q value for electron capture	9,898 ±445.4 keV
β⁻ decay energy	-11,200 ±565 keV

Point at nuclide Decay chain of Gadolinium-135

136GdGadolinium-136

Classification	z: 64; n: 72; m: 136
Half life	200 ns
Natural abundance	synthetic nuclide
Spin/parity	0+
Discovery	2000
Mass excess	-49,090 ±298 keV
Binding energy	8,064 ±2 keV
Single-particle energy	2,231 ±357 keV
Neutron separation energy	12,910 ±499 keV
Q value for electron capture	7,154 ±356.6 keV
β⁻ decay energy	-13,190 ±582 keV
β⁻ decay energy with neutron	-24,110 ±499 keV

Point at nuclide

137GdGadolinium-137

Classification	z: 64; n: 73; m: 137
Half life	2.2 ±2 s
Natural abundance	synthetic nuclide
Spin/parity	(7/2)
Decay modes	electron capture + β⁺ decay; electron capture + proton emission
Discovery	1999
Mass excess	-51,220 ±298 keV
Binding energy	8,080 ±2 keV
Single-particle energy	2,259 ±357 keV
Neutron separation energy	10,190 ±422 keV
Q value for electron capture	8,931 ±298 keV
β⁻ decay energy	-10,250 ±499 keV
β⁻ decay energy with neutron	-23,390 ±582 keV

Point at nuclide Decay chain of Gadolinium-137

138GdGadolinium-138

Classification	z: 64; n: 74; m: 138
Half life	4.7 ±9 s
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture + β⁺ decay
Discovery	1985
Mass excess	-55,660 ±200 keV
Binding energy	8,112 ±1 keV
Single-particle energy	2,803 ±200 keV
Neutron separation energy	12,510 ±359 keV
Q value for electron capture	6,089 ±201.9 keV
β⁻ decay energy	-12,060 ±361 keV
β⁻ decay energy with neutron	-22,770 ±448 keV

Point at nuclide Decay chain of Gadolinium-138

139GdGadolinium-139

Classification	z: 64; n: 75; m: 139
Half life	5.8 ±9 s
Natural abundance	synthetic nuclide
Spin/parity	(9/2-)
Decay modes	electron capture + β⁺ decay; electron capture + proton emission
Discovery	1983
Mass excess	-57,640 ±196 keV
Binding energy	8,126 ±1 keV
Single-particle energy	3,171 ±198 keV
Neutron separation energy	10,040 ±280 keV
Q value for electron capture	7,766 ±196.4 keV
β⁻ decay energy	-9,501 ±357 keV
β⁻ decay energy with neutron	-22,110 ±358 keV

Point at nuclide Decay chain of Gadolinium-139

140GdGadolinium-140

Classification	z: 64; n: 76; m: 140
Half life	15.8 ±4 s
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture + β⁺ decay
Discovery	1985
Mass excess	-61,790 ±27.94 keV
Binding energy	8,154 ±0.1996 keV
Single-particle energy	3,673 ±30.88 keV
Neutron separation energy	12,220 ±198 keV
Q value for electron capture	5,203 ±58.62 keV
β⁻ decay energy	-11,300 ±800 keV
β⁻ decay energy with neutron	-21,730 ±299 keV

Point at nuclide Decay chain of Gadolinium-140

141GdGadolinium-141

Classification	z: 64; n: 77; m: 141
Half life	14 ±4 s
Natural abundance	synthetic nuclide
Spin/parity	1/2+
Decay modes	electron capture + β⁺ decay; β⁺ decay + proton emission
Discovery	1986
Mass excess	-63,230 ±19.76 keV
Binding energy	8,164 ±0.1401 keV
Single-particle energy	3,527 ±55.19 keV
Neutron separation energy	9,513 ±34.22 keV
Q value for electron capture	6,701 ±23.45 keV
β⁻ decay energy	-8,684 ±107 keV
β⁻ decay energy with neutron	-20,820 ±800.7 keV

Point at nuclide Decay chain of Gadolinium-141

142GdGadolinium-142

Classification	z: 64; n: 78; m: 142
Half life	70.2 ±6 s
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture + β⁺ decay
Discovery	1986
Mass excess	-66,960 ±27.94 keV
Binding energy	8,190 ±0.1968 keV
Single-particle energy	4,322 ±30.67 keV
Neutron separation energy	11,800 ±34.22 keV
Q value for electron capture	4,349 ±41.04 keV
β⁻ decay energy	-10,400 ±700 keV
β⁻ decay energy with neutron	-20,490 ±108.9 keV

Point at nuclide Decay chain of Gadolinium-142

143GdGadolinium-143

Classification	z: 64; n: 79; m: 143
Half life	39 ±2 s
Natural abundance	synthetic nuclide
Spin/parity	(1/2)+
Decay modes	electron capture + β⁺ decay
Discovery	1975
Mass excess	-68,240 ±200.3 keV
Binding energy	8,198 ±1.4 keV
Single-particle energy	4,211 ±202.5 keV
Neutron separation energy	9,343 ±202.2 keV
Q value for electron capture	6,010 ±200.6 keV
β⁻ decay energy	-7,813 ±206.7 keV
β⁻ decay energy with neutron	-19,750 ±728.6 keV

Point at nuclide Decay chain of Gadolinium-143

144GdGadolinium-144

Classification	z: 64; n: 80; m: 144
Half life	4.47 ±6 m
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture + β⁺ decay
Discovery	1968
Mass excess	-71,760 ±27.94 keV
Binding energy	8,221 ±0.1941 keV
Single-particle energy	4,807 ±30.02 keV
Neutron separation energy	11,590 ±202.2 keV
Q value for electron capture	3,859 ±29.95 keV
β⁻ decay energy	-9,392 ±39.51 keV
β⁻ decay energy with neutron	-19,420 ±58.35 keV

Point at nuclide Decay chain of Gadolinium-144

145GdGadolinium-145

Classification	z: 64; n: 81; m: 145
Half life	23 ±4 m
Natural abundance	synthetic nuclide
Spin/parity	1/2+
Decay modes	electron capture + β⁺ decay
Discovery	1959
Mass excess	-72,930 ±19.71 keV
Binding energy	8,228 ±0.136 keV
Single-particle energy	4,596 ±22.47 keV
Neutron separation energy	9,238 ±34.19 keV
Q value for electron capture	5,064 ±19.95 keV
β⁻ decay energy	-6,527 ±109.7 keV
β⁻ decay energy with neutron	-18,630 ±34.19 keV
Magnetic dipole moment	-0.74 ±0.05 μN

Point at nuclide Decay chain of Gadolinium-145

146GdGadolinium-146

Classification	z: 64; n: 82; m: 146
Half life	48.27 ±9 d
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture + β⁺ decay
Discovery	1957
Mass excess	-76,090 ±4.076 keV
Binding energy	8,249 ±0.0279 keV
Single-particle energy	5,383 ±4.697 keV
Neutron separation energy	11,230 ±20.13 keV
Q value for electron capture	1,031 ±7.26 keV
β⁻ decay energy	-8,323 ±44.74 keV
β⁻ decay energy with neutron	-17,760 ±110.9 keV
Magnetic dipole moment	2.1 ±0.9 μN

Point at nuclide Decay chain of Gadolinium-146

147GdGadolinium-147

Classification	z: 64; n: 83; m: 147
Half life	38.06 ±12 h
Natural abundance	synthetic nuclide
Spin/parity	7/2-
Decay modes	electron capture + β⁺ decay
Discovery	1957
Mass excess	-75,360 ±1.887 keV
Binding energy	8,243 ±0.0128 keV
Single-particle energy	5,528 ±6.072 keV
Neutron separation energy	7,342 ±4.027 keV
Q value for electron capture	2,187 ±3.188 keV
β⁻ decay energy	-4,615 ±8.141 keV
β⁻ decay energy with neutron	-15,670 ±44.86 keV
Magnetic dipole moment	1.02 ±0.09 μN

Point at nuclide Decay chain of Gadolinium-147

148GdGadolinium-148

Classification	z: 64; n: 84; m: 148
Half life	71.1 ±12 a
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay
Discovery	1953
Mass excess	-76,270 ±1.46 keV
Binding energy	8,248 ±0.0099 keV
Single-particle energy	6,013 ±2.366 keV
Neutron separation energy	8,983 ±1.231 keV
Q value for electron capture	28.06 ±10.06 keV
β⁻ decay energy	-5,733 ±12.52 keV
β⁻ decay energy with neutron	-13,600 ±8.104 keV
Magnetic dipole moment	-0.16 ±0.02 μN
Electric quadrupole moment	0.96 ±0.05 b

Point at nuclide Decay chain of Gadolinium-148

149GdGadolinium-149

Classification	z: 64; n: 85; m: 149
Half life	9.28 ±10 d
Natural abundance	synthetic nuclide
Spin/parity	7/2-
Decay modes	electron capture + β⁺ decay; α decay
Discovery	1951
Mass excess	-75,130 ±3.31 keV
Binding energy	8,239 ±0.0222 keV
Single-particle energy	6,118 ±10.41 keV
Neutron separation energy	6,929 ±3.133 keV
Q value for electron capture	1,314 ±5.118 keV
β⁻ decay energy	-3,639 ±4.338 keV
β⁻ decay energy with neutron	-12,670 ±12.87 keV
Magnetic dipole moment	0.88 ±0.04 μN

Point at nuclide Decay chain of Gadolinium-149

150GdGadolinium-150

Classification	z: 64; n: 86; m: 150
Half life	1.79·10⁶ ±8 a
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay
Discovery	1953
Mass excess	-75,770 ±6.055 keV
Binding energy	8,242 ±0.0404 keV
Single-particle energy	6,611 ±7.067 keV
Neutron separation energy	8,708 ±6.747 keV
Q value for electron capture	-971.7 ±8.688 keV
β⁻ decay energy	-4,659 ±8.378 keV
β⁻ decay energy with neutron	-12,350 ±6.893 keV

Point at nuclide Decay chain of Gadolinium-150

151GdGadolinium-151

Classification	z: 64; n: 87; m: 151
Half life	123.9 ±10 d
Natural abundance	synthetic nuclide
Spin/parity	7/2-
Decay modes	electron capture (EC); α decay
Discovery	1950
Mass excess	-74,190 ±2.993 keV
Binding energy	8,231 ±0.0198 keV
Single-particle energy	6,685 ±6.763 keV
Neutron separation energy	6,496 ±6.609 keV
Q value for electron capture	464.1 ±3.212 keV
β⁻ decay energy	-2,566 ±3.761 keV
β⁻ decay energy with neutron	-11,160 ±7.849 keV
Magnetic dipole moment	0.77 ±0.06 μN

Point at nuclide Decay chain of Gadolinium-151

152GdGadolinium-152

Classification	z: 64; n: 88; m: 152
Half life	1.08·10¹⁴ ±8 a
Natural abundance	0.2 ±0.03 %
Spin/parity	0+
Decay modes	α decay
Discovery	1938
Mass excess	-74,710 ±1.007 keV
Binding energy	8,233 ±0.0066 keV
Single-particle energy	7,343 ±0.6995 keV
Neutron separation energy	8,589 ±2.853 keV
Q value for electron capture	-1,819 ±1.541 keV
β⁻ decay energy	-3,990 ±40 keV
β⁻ decay energy with neutron	-11,160 ±4.01 keV
Magnetic dipole moment	0.96 ±0.08 μN

Point at nuclide Decay chain of Gadolinium-152

153GdGadolinium-153

Classification	z: 64; n: 89; m: 153
Half life	240.4 ±10 d
Natural abundance	synthetic nuclide
Spin/parity	3/2-
Decay modes	electron capture (EC)
Discovery	1947
Mass excess	-72,890 ±1.002 keV
Binding energy	8,220 ±0.0066 keV
Single-particle energy	7,283 ±0.7076 keV
Neutron separation energy	6,246 ±0.1293 keV
Q value for electron capture	484.5 ±1.541 keV
β⁻ decay energy	-1,570 ±3.844 keV
β⁻ decay energy with neutron	-10,240 ±40 keV
Magnetic dipole moment	0.38 ±0.08 μN

Point at nuclide Decay chain of Gadolinium-153

154GdGadolinium-154

Classification	z: 64; n: 90; m: 154
Half life	stable nuclide
Natural abundance	2.18 ±0.02 %
Spin/parity	0+
Discovery	1938
Mass excess	-73,710 ±0.994 keV
Binding energy	8,224 ±0.0065 keV
Single-particle energy	7,627 ±0.7264 keV
Neutron separation energy	8,894 ±0.1651 keV
Q value for electron capture	-1,968 ±1.549 keV
β⁻ decay energy	-3,550 ±45.29 keV
β⁻ decay energy with neutron	-10,470 ±3.847 keV
Magnetic dipole moment	0.96 ±0.06 μN
Electric quadrupole moment	-1.82 ±0.04 b

Point at nuclide

155GdGadolinium-155

Classification	z: 64; n: 91; m: 155
Half life	stable nuclide
Natural abundance	14.8 ±0.09 %
Spin/parity	3/2-
Discovery	1933
Mass excess	-72,080 ±0.983 keV
Binding energy	8,213 ±0.0063 keV
Single-particle energy	7,620 ±0.7722 keV
Neutron separation energy	6,435 ±0.182 keV
Q value for electron capture	-252 ±1.592 keV
β⁻ decay energy	-819.9 ±9.788 keV
β⁻ decay energy with neutron	-9,985 ±45.29 keV
Magnetic dipole moment	-0.2591 ±4·10^-4 μN
Electric quadrupole moment	1.27 ±0.03 b

Point at nuclide

156GdGadolinium-156

Classification	z: 64; n: 92; m: 156
Half life	stable nuclide
Natural abundance	20.47 ±0.03 %
Spin/parity	0+
Discovery	1933
Mass excess	-72,540 ±0.983 keV
Binding energy	8,215 ±0.0063 keV
Single-particle energy	8,005 ±0.8704 keV
Neutron separation energy	8,536 ±0.0656 keV
Q value for electron capture	-2,453 ±3.666 keV
β⁻ decay energy	-2,445 ±3.677 keV
β⁻ decay energy with neutron	-9,357 ±9.788 keV
Magnetic dipole moment	3.24 ±0.11 μN
Electric quadrupole moment	-1.93 ±0.04 b

Point at nuclide

157GdGadolinium-157

Classification	z: 64; n: 93; m: 157
Half life	stable nuclide
Natural abundance	15.65 ±0.04 %
Spin/parity	3/2-
Discovery	1933
Mass excess	-70,830 ±0.977 keV
Binding energy	8,203 ±0.0062 keV
Single-particle energy	8,030 ±3.411 keV
Neutron separation energy	6,359 ±0.149 keV
Q value for electron capture	-1,365 ±4.345 keV
β⁻ decay energy	-60.05 ±0.2972 keV
β⁻ decay energy with neutron	-8,805 ±3.68 keV
Magnetic dipole moment	-0.3398 ±5.999·10^-4 μN
Electric quadrupole moment	1.35 ±0.03 b

Point at nuclide

158GdGadolinium-158

Classification	z: 64; n: 94; m: 158
Half life	stable nuclide
Natural abundance	24.84 ±0.08 %
Spin/parity	0+
Discovery	1933
Mass excess	-70,690 ±0.976 keV
Binding energy	8,201 ±0.0062 keV
Single-particle energy	8,519 ±4.196 keV
Neutron separation energy	7,937 ±0.0646 keV
Q value for electron capture	-3,420 ±2.254 keV
β⁻ decay energy	-1,220 ±0.9799 keV
β⁻ decay energy with neutron	-7,998 ±0.3042 keV
Magnetic dipole moment	1.55 ±0.12 μN
Electric quadrupole moment	-2.01 ±0.04 b

Point at nuclide

159GdGadolinium-159

Classification	z: 64; n: 95; m: 159
Half life	18.47 ±4 h
Natural abundance	synthetic nuclide
Spin/parity	3/2-
Decay modes	β⁻ decay
Discovery	1949
Mass excess	-68,570 ±0.98 keV
Binding energy	8,187 ±0.0062 keV
Single-particle energy	8,580 ±2.256 keV
Neutron separation energy	5,943 ±0.0848 keV
Q value for electron capture	-2,519 ±4.43 keV
β⁻ decay energy	970.7 ±0.7495 keV
β⁻ decay energy with neutron	-7,163 ±0.9817 keV
Magnetic dipole moment	-0.44 ±0.03 μN

Point at nuclide Decay chain of Gadolinium-159

160GdGadolinium-160

Classification	z: 64; n: 96; m: 160
Half life	stable nuclide
Natural abundance	21.86 ±0.03 %
Spin/parity	0+
Discovery	1933
Mass excess	-67,950 ±1.123 keV
Binding energy	8,183 ±0.007 keV
Single-particle energy	9,187 ±4.364 keV
Neutron separation energy	7,451 ±0.7346 keV
Q value for electron capture	-4,449 ±1.442 keV
β⁻ decay energy	-105.6 ±1.02 keV
β⁻ decay energy with neutron	-6,481 ±1.018 keV
Magnetic dipole moment	1.5 ±0.2 μN
Electric quadrupole moment	-2.08 ±0.04 b

Point at nuclide

161GdGadolinium-161

Classification	z: 64; n: 97; m: 161
Half life	3.66 ±5 m
Natural abundance	synthetic nuclide
Spin/parity	5/2-
Decay modes	β⁻ decay
Discovery	1949
Mass excess	-65,510 ±1.504 keV
Binding energy	8,167 ±0.0093 keV
Single-particle energy	9,301 ±1.754 keV
Neutron separation energy	5,635 ±1 keV
Q value for electron capture	-3,715 ±10.5 keV
β⁻ decay energy	1,955 ±1.44 keV
β⁻ decay energy with neutron	-5,741 ±1.428 keV

Point at nuclide Decay chain of Gadolinium-161

162GdGadolinium-162

Classification	z: 64; n: 98; m: 162
Half life	8.4 ±2 m
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay
Discovery	1967
Mass excess	-64,290 ±3.963 keV
Binding energy	8,159 ±0.0245 keV
Single-particle energy	9,778 ±11.12 keV
Neutron separation energy	6,845 ±3.929 keV
Q value for electron capture	-5,558 ±4.175 keV
β⁻ decay energy	1,598 ±4.461 keV
β⁻ decay energy with neutron	-4,891 ±3.938 keV

Point at nuclide Decay chain of Gadolinium-162

163GdGadolinium-163

Classification	z: 64; n: 99; m: 163
Half life	68 ±3 s
Natural abundance	synthetic nuclide
Spin/parity	(5/2- 7/2+)
Decay modes	β⁻ decay
Discovery	1982
Mass excess	-61,390 ±0.797 keV
Binding energy	8,140 ±0.0049 keV
Single-particle energy	9,954 ±1.536 keV
Neutron separation energy	5,179 ±4.041 keV
Q value for electron capture	-4,815 ±1.205 keV
β⁻ decay energy	3,207 ±4.137 keV
β⁻ decay energy with neutron	-3,581 ±2.198 keV

Point at nuclide Decay chain of Gadolinium-163

164GdGadolinium-164

Classification	z: 64; n: 100; m: 164
Half life	45 ±3 s
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay
Discovery	1988
Mass excess	-59,700 ±1 keV
Binding energy	8,129 ±0.0061 keV
Single-particle energy	10,400 ±1.347 keV
Neutron separation energy	6,376 ±1.278 keV
Q value for electron capture	-6,462 ±2.297 keV
β⁻ decay energy	2,411 ±2.114 keV
β⁻ decay energy with neutron	-3,170 ±4.181 keV

Point at nuclide Decay chain of Gadolinium-164

165GdGadolinium-165

Classification	z: 64; n: 101; m: 165
Half life	10.3 ±16 s
Natural abundance	synthetic nuclide
Decay modes	β⁻ decay
Discovery	1998
Mass excess	-56,530 ±1.304 keV
Binding energy	8,110 ±0.0079 keV
Single-particle energy	10,580 ±2.444 keV
Neutron separation energy	4,903 ±1.643 keV
Q value for electron capture	-5,797 ±5.374 keV
β⁻ decay energy	4,063 ±2.018 keV
β⁻ decay energy with neutron	-2,493 ±2.274 keV

Point at nuclide Decay chain of Gadolinium-165

166GdGadolinium-166

Classification	z: 64; n: 102; m: 166
Half life	4.8 ±10 s
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay
Discovery	2005
Mass excess	-54,380 ±1.584 keV
Binding energy	8,097 ±0.0095 keV
Single-particle energy	10,930 ±5.447 keV
Neutron separation energy	5,916 ±2.051 keV
Q value for electron capture	-7,622 ±100 keV
β⁻ decay energy	3,437 ±2.155 keV
β⁻ decay energy with neutron	-1,854 ±2.209 keV

Point at nuclide Decay chain of Gadolinium-166

167GdGadolinium-167

Classification	z: 64; n: 103; m: 167
Half life	4.26 ± s
Natural abundance	synthetic nuclide
Spin/parity	(5/2-)
Decay modes	β⁻ decay
Discovery	2012
Mass excess	-50,780 ±5.213 keV
Binding energy	8,075 ±0.0312 keV
Single-particle energy	11,310 ±100 keV
Neutron separation energy	4,476 ±5.448 keV
Q value for electron capture	-7,006 ±400 keV
β⁻ decay energy	5,107 ±5.558 keV
β⁻ decay energy with neutron	-1,039 ±5.414 keV

Point at nuclide Decay chain of Gadolinium-167

168GdGadolinium-168

Classification	z: 64; n: 104; m: 168
Half life	3.03 ±16 s
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay
Discovery	1985
Mass excess	-48,150 ±300 keV
Binding energy	8,060 ±2 keV
Single-particle energy	11,660 ±500 keV
Neutron separation energy	5,445 ±300 keV
Q value for electron capture	-8,900 ±500 keV
β⁻ decay energy	4,631 ±300 keV
β⁻ decay energy with neutron	-338 ±300 keV

Point at nuclide Decay chain of Gadolinium-168

169GdGadolinium-169

Classification	z: 64; n: 105; m: 169
Half life	0.75 ±21 s
Natural abundance	synthetic nuclide
Spin/parity	(7/2-)
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	2012
Mass excess	-43,890 ±400 keV
Binding energy	8,035 ±2 keV
Single-particle energy	11,920 ±565 keV
Neutron separation energy	3,812 ±500 keV
Q value for electron capture	-8,230 ±640.3 keV
β⁻ decay energy	6,590 ±500 keV
β⁻ decay energy with neutron	820 ±400 keV

Point at nuclide Decay chain of Gadolinium-169

170GdGadolinium-170

Classification	z: 64; n: 106; m: 170
Half life	0.41 ± s
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	2012
Mass excess	-40,850 ±500 keV
Binding energy	8,017 ±3 keV
Single-particle energy	12,470 ±707 keV
Neutron separation energy	5,031 ±640 keV
β⁻ decay energy	5,860 ±583 keV
β⁻ decay energy with neutron	1,559 ±583 keV

Point at nuclide Decay chain of Gadolinium-170

171GdGadolinium-171

Classification	z: 64; n: 107; m: 171
Half life	stable nuclide
Natural abundance	synthetic nuclide
Discovery	2018
Mass excess	-36,210 ±500 keV
Binding energy	7,990 ±3 keV
Single-particle energy	12,630 ±707 keV
Neutron separation energy	3,432 ±707 keV
β⁻ decay energy	7,560 ±640 keV
β⁻ decay energy with neutron	2,428 ±583 keV

Point at nuclide

172GdGadolinium-172

Classification	z: 64; n: 108; m: 172
Half life	stable nuclide
Natural abundance	synthetic nuclide
Spin/parity	0+
Discovery	2018
Mass excess	-32,970 ±300 keV
Binding energy	7,972 ±2 keV
Neutron separation energy	4,832 ±583 keV
β⁻ decay energy	6,720 ±583 keV
β⁻ decay energy with neutron	2,728 ±500 keV

Point at nuclide

Isotopes of Gadolinium

134GdGadolinium-134ads_clickdownload

135GdGadolinium-135ads_clickcall_splitdownload

136GdGadolinium-136ads_clickdownload

137GdGadolinium-137ads_clickcall_splitdownload

138GdGadolinium-138ads_clickcall_splitdownload

139GdGadolinium-139ads_clickcall_splitdownload

140GdGadolinium-140ads_clickcall_splitdownload

141GdGadolinium-141ads_clickcall_splitdownload

142GdGadolinium-142ads_clickcall_splitdownload

143GdGadolinium-143ads_clickcall_splitdownload

144GdGadolinium-144ads_clickcall_splitdownload

145GdGadolinium-145ads_clickcall_splitdownload

146GdGadolinium-146ads_clickcall_splitdownload

147GdGadolinium-147ads_clickcall_splitdownload

148GdGadolinium-148ads_clickcall_splitdownload

149GdGadolinium-149ads_clickcall_splitdownload

150GdGadolinium-150ads_clickcall_splitdownload

151GdGadolinium-151ads_clickcall_splitdownload

152GdGadolinium-152ads_clickcall_splitdownload

153GdGadolinium-153ads_clickcall_splitdownload

154GdGadolinium-154ads_clickdownload

155GdGadolinium-155ads_clickdownload

156GdGadolinium-156ads_clickdownload

157GdGadolinium-157ads_clickdownload

158GdGadolinium-158ads_clickdownload

159GdGadolinium-159ads_clickcall_splitdownload

160GdGadolinium-160ads_clickdownload

161GdGadolinium-161ads_clickcall_splitdownload

162GdGadolinium-162ads_clickcall_splitdownload

163GdGadolinium-163ads_clickcall_splitdownload

164GdGadolinium-164ads_clickcall_splitdownload

165GdGadolinium-165ads_clickcall_splitdownload

166GdGadolinium-166ads_clickcall_splitdownload

167GdGadolinium-167ads_clickcall_splitdownload

168GdGadolinium-168ads_clickcall_splitdownload

169GdGadolinium-169ads_clickcall_splitdownload

170GdGadolinium-170ads_clickcall_splitdownload

171GdGadolinium-171ads_clickdownload

172GdGadolinium-172ads_clickdownload

134GdGadolinium-134

135GdGadolinium-135

136GdGadolinium-136

137GdGadolinium-137

138GdGadolinium-138

139GdGadolinium-139

140GdGadolinium-140

141GdGadolinium-141

142GdGadolinium-142

143GdGadolinium-143

144GdGadolinium-144

145GdGadolinium-145

146GdGadolinium-146

147GdGadolinium-147

148GdGadolinium-148

149GdGadolinium-149

150GdGadolinium-150

151GdGadolinium-151

152GdGadolinium-152

153GdGadolinium-153

154GdGadolinium-154

155GdGadolinium-155

156GdGadolinium-156

157GdGadolinium-157

158GdGadolinium-158

159GdGadolinium-159

160GdGadolinium-160

161GdGadolinium-161

162GdGadolinium-162

163GdGadolinium-163

164GdGadolinium-164

165GdGadolinium-165

166GdGadolinium-166

167GdGadolinium-167

168GdGadolinium-168

169GdGadolinium-169

170GdGadolinium-170

171GdGadolinium-171

172GdGadolinium-172