Isotopes of Hafnium

List of known isotopes of the element Hafnium.

Isotope	t½	%	Spin/parity	Radius	Isotopic mass	Discovery
¹⁵¹Hf	stab.	syn.	—	—	—	—
¹⁵³Hf	stab.	syn.	—	—	1.529·10⁸ ±322 keV/c²	2000
¹⁵⁴Hf	2 ±1 s	syn.	0+	—	1.539·10⁸ ±322 keV/c²	1981
¹⁵⁵Hf	843 ±30 ms	syn.	(7/2-)	—	1.549·10⁸ ±322 keV/c²	1981
¹⁵⁶Hf	23 ±1 ms	syn.	0+	—	1.559·10⁸ ±160.7 keV/c²	1979
¹⁵⁷Hf	115 ±1 ms	syn.	(7/2-)	—	1.569·10⁸ ±215 keV/c²	1965
¹⁵⁸Hf	2.85 ±7 s	syn.	0+	—	1.579·10⁸ ±18.78 keV/c²	1965
¹⁵⁹Hf	5.6 ±4 s	syn.	7/2-	—	1.589·10⁸ ±18.04 keV/c²	1973
¹⁶⁰Hf	13.6 ±2 s	syn.	0+	—	1.599·10⁸ ±10.24 keV/c²	1973
¹⁶¹Hf	18.4 ±4 s	syn.	(7/2-)	—	1.609·10⁸ ±25.17 keV/c²	1973
¹⁶²Hf	39.4 ±9 s	syn.	0+	—	1.619·10⁸ ±9.61 keV/c²	1982
¹⁶³Hf	40 ±6 s	syn.	(5/2-)	—	1.629·10⁸ ±27.58 keV/c²	1982
¹⁶⁴Hf	111 ±8 s	syn.	0+	—	1.639·10⁸ ±16.97 keV/c²	1981
¹⁶⁵Hf	76 ±4 s	syn.	(5/2-)	—	1.649·10⁸ ±30 keV/c²	1981
¹⁶⁶Hf	6.77 ±30 m	syn.	0+	—	1.659·10⁸ ±30 keV/c²	1965
¹⁶⁷Hf	2.05 ±5 m	syn.	(5/2)-	—	1.669·10⁸ ±30 keV/c²	1969
¹⁶⁸Hf	25.95 ±20 m	syn.	0+	—	1.679·10⁸ ±30 keV/c²	1961
¹⁶⁹Hf	3.24 ±4 m	syn.	5/2-	—	1.689·10⁸ ±30 keV/c²	1969
¹⁷⁰Hf	16.01 ±13 h	syn.	0+	5.289 ±0.0055 fm	1.699·10⁸ ±30 keV/c²	1961
¹⁷¹Hf	12.1 ±4 h	syn.	7/2(+)	5.304 ±0.0049 fm	1.709·10⁸ ±31 keV/c²	1951
¹⁷²Hf	1.87 ±3 a	syn.	0+	5.306 ±0.0043 fm	1.719·10⁸ ±26.22 keV/c²	1951
¹⁷³Hf	23.6 ±1 h	syn.	1/2-	5.314 ±0.0038 fm	1.729·10⁸ ±30 keV/c²	1951
¹⁷⁴Hf	2·10¹⁵ ±4 a	0.16 ±0.12 %	0+	5.32 ±0.0035 fm	1.739·10⁸ ±2.425 keV/c²	1939
¹⁷⁵Hf	70 ±2 d	syn.	5/2(-)	5.319 ±0.0036 fm	1.749·10⁸ ±2.45 keV/c²	1949
¹⁷⁶Hf	stab.	5.26 ±0.7 %	0+	5.328 ±0.0032 fm	1.759·10⁸ ±1.591 keV/c²	1934
¹⁷⁷Hf	stab.	18.6 ±0.16 %	7/2-	5.33 ±0.0031 fm	1.769·10⁸ ±1.514 keV/c²	1934
¹⁷⁸Hf	stab.	27.28 ±0.28 %	0+	5.337 ±0.0031 fm	1.779·10⁸ ±1.519 keV/c²	1934
¹⁷⁹Hf	stab.	13.62 ±0.11 %	9/2+	5.34 ±0.0031 fm	1.789·10⁸ ±1.52 keV/c²	1934
¹⁸⁰Hf	stab.	35.08 ±0.33 %	0+	5.347 ±0.0032 fm	1.799·10⁸ ±1.525 keV/c²	1934
¹⁸¹Hf	42.39 ±6 d	syn.	1/2-	—	1.809·10⁸ ±1.527 keV/c²	1935
¹⁸²Hf	8.9·10⁶ ±9 a	syn.	0+	5.351 ±0.0036 fm	1.819·10⁸ ±6.619 keV/c²	1961
¹⁸³Hf	1.018 ±2 h	syn.	(3/2-)	—	1.829·10⁸ ±32.25 keV/c²	1956
¹⁸⁴Hf	4.12 ±5 h	syn.	0+	—	1.839·10⁸ ±42.62 keV/c²	1973
¹⁸⁵Hf	3.5 ±6 m	syn.	—	—	1.849·10⁸ ±69 keV/c²	1993
¹⁸⁶Hf	2.6 ±12 m	syn.	0+	—	1.859·10⁸ ±55 keV/c²	1998
¹⁸⁷Hf	stab.	syn.	—	—	1.869·10⁸ ±215 keV/c²	1999
¹⁸⁸Hf	stab.	syn.	0+	—	1.879·10⁸ ±322 keV/c²	1999
¹⁸⁹Hf	stab.	syn.	—	—	1.889·10⁸ ±322 keV/c²	2009
¹⁹⁰Hf	stab.	syn.	0+	—	1.899·10⁸ ±429 keV/c²	2012

151HfHafnium-151

Classification	z: 72; n: 79; m: 151
Half life	stable nuclide
Natural abundance	synthetic nuclide

Point at nuclide

153HfHafnium-153

Classification	z: 72; n: 81; m: 153
Half life	stable nuclide
Natural abundance	synthetic nuclide
Discovery	2000
Mass excess	-27,300 ±300 keV
Binding energy	7,882 ±2 keV
Single-particle energy	1,167 ±358 keV
Q value for electron capture	11,070 ±335.4 keV

Point at nuclide

154HfHafnium-154

Classification	z: 72; n: 82; m: 154
Half life	2 ±1 s
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture + β⁺ decay; α decay
Discovery	1981
Mass excess	-32,730 ±300 keV
Binding energy	7,918 ±2 keV
Single-particle energy	1,643 ±335 keV
Neutron separation energy	13,500 ±424 keV
Q value for electron capture	6,937 ±361.1 keV

Point at nuclide Decay chain of Hafnium-154

155HfHafnium-155

Classification	z: 72; n: 83; m: 155
Half life	843 ±30 ms
Natural abundance	synthetic nuclide
Spin/parity	(7/2-)
Decay modes	electron capture + β⁺ decay
Discovery	1981
Mass excess	-34,310 ±300 keV
Binding energy	7,929 ±2 keV
Single-particle energy	1,932 ±361 keV
Neutron separation energy	9,651 ±424 keV
Q value for electron capture	8,235 ±300.6 keV
β⁻ decay energy	-10,330 ±424 keV

Point at nuclide Decay chain of Hafnium-155

156HfHafnium-156

Classification	z: 72; n: 84; m: 156
Half life	23 ±1 ms
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay
Discovery	1979
Mass excess	-37,820 ±149.7 keV
Binding energy	7,952 ±0.9599 keV
Single-particle energy	2,563 ±150.9 keV
Neutron separation energy	11,580 ±335 keV
Q value for electron capture	5,880 ±159.2 keV
β⁻ decay energy	-11,820 ±335 keV
β⁻ decay energy with neutron	-21,910 ±336 keV

Point at nuclide Decay chain of Hafnium-156

157HfHafnium-157

Classification	z: 72; n: 85; m: 157
Half life	115 ±1 ms
Natural abundance	synthetic nuclide
Spin/parity	(7/2-)
Decay modes	α decay; electron capture + β⁺ decay
Discovery	1965
Mass excess	-38,860 ±200 keV
Binding energy	7,960 ±1 keV
Single-particle energy	2,444 ±207 keV
Neutron separation energy	9,107 ±250 keV
Q value for electron capture	7,584 ±200.3 keV
β⁻ decay energy	-9,259 ±250 keV
β⁻ decay energy with neutron	-20,930 ±361 keV

Point at nuclide Decay chain of Hafnium-157

158HfHafnium-158

Classification	z: 72; n: 86; m: 158
Half life	2.85 ±7 s
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture + β⁺ decay; α decay
Discovery	1965
Mass excess	-42,110 ±17.49 keV
Binding energy	7,981 ±0.1107 keV
Single-particle energy	2,951 ±21.24 keV
Neutron separation energy	11,310 ±201 keV
Q value for electron capture	5,109 ±23.12 keV
β⁻ decay energy	-10,990 ±201 keV
β⁻ decay energy with neutron	-20,580 ±151 keV

Point at nuclide Decay chain of Hafnium-158

159HfHafnium-159

Classification	z: 72; n: 87; m: 159
Half life	5.6 ±4 s
Natural abundance	synthetic nuclide
Spin/parity	7/2-
Decay modes	electron capture + β⁺ decay; α decay
Discovery	1973
Mass excess	-42,860 ±16.81 keV
Binding energy	7,986 ±0.1057 keV
Single-particle energy	2,929 ±22.61 keV
Neutron separation energy	8,821 ±24.26 keV
Q value for electron capture	6,856 ±41.24 keV
β⁻ decay energy	-8,414 ±25.89 keV
β⁻ decay energy with neutron	-19,810 ±201 keV

Point at nuclide Decay chain of Hafnium-159

160HfHafnium-160

Classification	z: 72; n: 88; m: 160
Half life	13.6 ±2 s
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture + β⁺ decay; α decay
Discovery	1973
Mass excess	-45,940 ±9.54 keV
Binding energy	8,006 ±0.0596 keV
Single-particle energy	3,519 ±38.85 keV
Neutron separation energy	11,150 ±19.33 keV
Q value for electron capture	4,331 ±57.61 keV
β⁻ decay energy	-10,120 ±55.14 keV
β⁻ decay energy with neutron	-19,580 ±21.87 keV

Point at nuclide Decay chain of Hafnium-160

161HfHafnium-161

Classification	z: 72; n: 89; m: 161
Half life	18.4 ±4 s
Natural abundance	synthetic nuclide
Spin/parity	(7/2-)
Decay modes	electron capture + β⁺ decay; α decay
Discovery	1973
Mass excess	-46,320 ±23.45 keV
Binding energy	8,009 ±0.1457 keV
Single-particle energy	3,334 ±61.47 keV
Neutron separation energy	8,448 ±25.25 keV
Q value for electron capture	6,246 ±36.48 keV
β⁻ decay energy	-7,538 ±33.72 keV
β⁻ decay energy with neutron	-18,570 ±59.16 keV

Point at nuclide Decay chain of Hafnium-161

162HfHafnium-162

Classification	z: 72; n: 90; m: 162
Half life	39.4 ±9 s
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture + β⁺ decay; α decay
Discovery	1982
Mass excess	-49,170 ±8.952 keV
Binding energy	8,027 ±0.0553 keV
Single-particle energy	3,895 ±29.34 keV
Neutron separation energy	10,920 ±25.09 keV
Q value for electron capture	3,663 ±75.56 keV
β⁻ decay energy	-9,388 ±63.89 keV
β⁻ decay energy with neutron	-18,470 ±25.95 keV

Point at nuclide Decay chain of Hafnium-162

163HfHafnium-163

Classification	z: 72; n: 91; m: 163
Half life	40 ±6 s
Natural abundance	synthetic nuclide
Spin/parity	(5/2-)
Decay modes	electron capture + β⁺ decay; α decay
Discovery	1982
Mass excess	-49,270 ±25.69 keV
Binding energy	8,028 ±0.1576 keV
Single-particle energy	3,726 ±79.31 keV
Neutron separation energy	8,172 ±27.2 keV
Q value for electron capture	5,522 ±37.96 keV
β⁻ decay energy	-6,735 ±45.92 keV
β⁻ decay energy with neutron	-17,560 ±68.33 keV

Point at nuclide Decay chain of Hafnium-163

164HfHafnium-164

Classification	z: 72; n: 92; m: 164
Half life	111 ±8 s
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture + β⁺ decay
Discovery	1981
Mass excess	-51,820 ±15.81 keV
Binding energy	8,043 ±0.0964 keV
Single-particle energy	4,315 ±32.1 keV
Neutron separation energy	10,620 ±30.16 keV
Q value for electron capture	2,824 ±32.1 keV
β⁻ decay energy	-8,536 ±32.1 keV
β⁻ decay energy with neutron	-17,360 ±41.21 keV

Point at nuclide Decay chain of Hafnium-164

165HfHafnium-165

Classification	z: 72; n: 93; m: 165
Half life	76 ±4 s
Natural abundance	synthetic nuclide
Spin/parity	(5/2-)
Decay modes	electron capture + β⁺ decay
Discovery	1981
Mass excess	-51,640 ±27.94 keV
Binding energy	8,042 ±0.1694 keV
Single-particle energy	4,282 ±39.51 keV
Neutron separation energy	7,888 ±32.1 keV
Q value for electron capture	4,806 ±38.53 keV
β⁻ decay energy	-5,788 ±31.06 keV
β⁻ decay energy with neutron	-16,430 ±39.51 keV

Point at nuclide Decay chain of Hafnium-165

166HfHafnium-166

Classification	z: 72; n: 94; m: 166
Half life	6.77 ±30 m
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture + β⁺ decay
Discovery	1965
Mass excess	-53,860 ±27.94 keV
Binding energy	8,056 ±0.1683 keV
Single-particle energy	4,705 ±38.53 keV
Neutron separation energy	10,290 ±39.51 keV
Q value for electron capture	2,161 ±40.85 keV
β⁻ decay energy	-7,762 ±39.51 keV
β⁻ decay energy with neutron	-16,090 ±31.06 keV

Point at nuclide Decay chain of Hafnium-166

167HfHafnium-167

Classification	z: 72; n: 95; m: 167
Half life	2.05 ±5 m
Natural abundance	synthetic nuclide
Spin/parity	(5/2)-
Decay modes	electron capture + β⁺ decay
Discovery	1969
Mass excess	-53,470 ±27.94 keV
Binding energy	8,054 ±0.1673 keV
Single-particle energy	4,735 ±40.85 keV
Neutron separation energy	7,680 ±39.51 keV
Q value for electron capture	4,058 ±46.57 keV
β⁻ decay energy	-5,117 ±39.51 keV
β⁻ decay energy with neutron	-15,450 ±39.51 keV

Point at nuclide Decay chain of Hafnium-167

168HfHafnium-168

Classification	z: 72; n: 96; m: 168
Half life	25.95 ±20 m
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture + β⁺ decay
Discovery	1961
Mass excess	-55,370 ±27.94 keV
Binding energy	8,065 ±0.1663 keV
Single-particle energy	5,123 ±46.57 keV
Neutron separation energy	9,964 ±39.51 keV
Q value for electron capture	1,712 ±47.14 keV
β⁻ decay energy	-6,967 ±39.51 keV
β⁻ decay energy with neutron	-15,090 ±39.51 keV
Magnetic dipole moment	0.34 ±0.06 μN

Point at nuclide Decay chain of Hafnium-168

169HfHafnium-169

Classification	z: 72; n: 97; m: 169
Half life	3.24 ±4 m
Natural abundance	synthetic nuclide
Spin/parity	5/2-
Decay modes	electron capture + β⁺ decay
Discovery	1969
Mass excess	-54,720 ±27.94 keV
Binding energy	8,061 ±0.1654 keV
Single-particle energy	4,933 ±47.14 keV
Neutron separation energy	7,427 ±39.51 keV
Q value for electron capture	3,365 ±28.1 keV
β⁻ decay energy	-4,427 ±39.51 keV
β⁻ decay energy with neutron	-14,400 ±39.51 keV

Point at nuclide Decay chain of Hafnium-169

170HfHafnium-170

Classification	z: 72; n: 98; m: 170
Half life	16.01 ±13 h
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture (EC)
Discovery	1961
Mass excess	-56,260 ±27.94 keV
Binding energy	8,070 ±0.1644 keV
Single-particle energy	5,460 ±28.1 keV
Neutron separation energy	9,608 ±39.51 keV
Q value for electron capture	1,052 ±32.62 keV
β⁻ decay energy	-6,117 ±39.51 keV
β⁻ decay energy with neutron	-14,040 ±39.51 keV
Magnetic dipole moment	0.56 ±0.1 μN

Point at nuclide Decay chain of Hafnium-170

171HfHafnium-171

Classification	z: 72; n: 99; m: 171
Half life	12.1 ±4 h
Natural abundance	synthetic nuclide
Spin/parity	7/2(+)
Decay modes	electron capture + β⁺ decay
Discovery	1951
Mass excess	-55,440 ±28.87 keV
Binding energy	8,066 ±0.1689 keV
Single-particle energy	5,414 ±33.42 keV
Neutron separation energy	7,248 ±40.18 keV
Q value for electron capture	2,397 ±28.93 keV
β⁻ decay energy	-3,712 ±40.18 keV
β⁻ decay energy with neutron	-13,370 ±40.18 keV
Magnetic dipole moment	-0.674 ±0.012 μN
Electric quadrupole moment	3.46 ±0.03 b

Point at nuclide Decay chain of Hafnium-171

172HfHafnium-172

Classification	z: 72; n: 100; m: 172
Half life	1.87 ±3 a
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture (EC)
Discovery	1951
Mass excess	-56,410 ±24.42 keV
Binding energy	8,071 ±0.142 keV
Single-particle energy	5,862 ±24.49 keV
Neutron separation energy	9,042 ±37.82 keV
Q value for electron capture	333.8 ±24.53 keV
β⁻ decay energy	-5,073 ±37.11 keV
β⁻ decay energy with neutron	-12,760 ±37.11 keV
Magnetic dipole moment	5.6 ±0.6 μN

Point at nuclide Decay chain of Hafnium-172

173HfHafnium-173

Classification	z: 72; n: 101; m: 173
Half life	23.6 ±1 h
Natural abundance	synthetic nuclide
Spin/parity	1/2-
Decay modes	electron capture + β⁺ decay
Discovery	1951
Mass excess	-55,420 ±27.94 keV
Binding energy	8,066 ±0.1615 keV
Single-particle energy	5,964 ±28.04 keV
Neutron separation energy	7,080 ±37.11 keV
Q value for electron capture	1,469 ±27.98 keV
β⁻ decay energy	-3,016 ±39.51 keV
β⁻ decay energy with neutron	-12,160 ±39.51 keV
Magnetic dipole moment	0.502 ±0.007 μN

Point at nuclide Decay chain of Hafnium-173

174HfHafnium-174

Classification	z: 72; n: 102; m: 174
Half life	2·10¹⁵ ±4 a
Natural abundance	0.16 ±0.12 %
Spin/parity	0+
Decay modes	α decay
Discovery	1939
Mass excess	-55,850 ±2.259 keV
Binding energy	8,068 ±0.013 keV
Single-particle energy	6,252 ±2.168 keV
Neutron separation energy	8,504 ±28.03 keV
Q value for electron capture	-274.3 ±2.749 keV
β⁻ decay energy	-4,104 ±28.03 keV
β⁻ decay energy with neutron	-11,520 ±28.03 keV
Magnetic dipole moment	5.4 ±0.05 μN

Point at nuclide Decay chain of Hafnium-174

175HfHafnium-175

Classification	z: 72; n: 103; m: 175
Half life	70 ±2 d
Natural abundance	synthetic nuclide
Spin/parity	5/2(-)
Decay modes	electron capture (EC)
Discovery	1949
Mass excess	-54,490 ±2.283 keV
Binding energy	8,060 ±0.013 keV
Single-particle energy	6,200 ±2.193 keV
Neutron separation energy	6,708 ±0.3832 keV
Q value for electron capture	683.9 ±2.582 keV
β⁻ decay energy	-2,074 ±28.03 keV
β⁻ decay energy with neutron	-10,820 ±28.03 keV
Magnetic dipole moment	-0.677 ±0.009 μN
Electric quadrupole moment	2.72 ±0.02 b

Point at nuclide Decay chain of Hafnium-175

176HfHafnium-176

Classification	z: 72; n: 104; m: 176
Half life	stable nuclide
Natural abundance	5.26 ±0.7 %
Spin/parity	0+
Discovery	1934
Mass excess	-54,580 ±1.482 keV
Binding energy	8,061 ±0.0084 keV
Single-particle energy	6,699 ±0.8869 keV
Neutron separation energy	8,165 ±1.78 keV
Q value for electron capture	-1,195 ±1.914 keV
β⁻ decay energy	-3,212 ±30.77 keV
β⁻ decay energy with neutron	-10,240 ±27.98 keV
Magnetic dipole moment	1.34 ±0.15 μN
Electric quadrupole moment	-2.1 ±0.02 b

Point at nuclide

177HfHafnium-177

Classification	z: 72; n: 105; m: 177
Half life	stable nuclide
Natural abundance	18.6 ±0.16 %
Spin/parity	7/2-
Discovery	1934
Mass excess	-52,890 ±1.41 keV
Binding energy	8,051 ±0.008 keV
Single-particle energy	6,787 ±0.8007 keV
Neutron separation energy	6,375 ±1.018 keV
Q value for electron capture	-496.9 ±1.865 keV
β⁻ decay energy	-1,166 ±3 keV
β⁻ decay energy with neutron	-9,587 ±30.77 keV
Magnetic dipole moment	0.791 ±9·10^-4 μN
Electric quadrupole moment	3.37 ±0.03 b

Point at nuclide

178HfHafnium-178

Classification	z: 72; n: 106; m: 178
Half life	stable nuclide
Natural abundance	27.28 ±0.28 %
Spin/parity	0+
Discovery	1934
Mass excess	-52,440 ±1.415 keV
Binding energy	8,049 ±0.008 keV
Single-particle energy	7,340 ±0.8038 keV
Neutron separation energy	7,625 ±0.1767 keV
Q value for electron capture	-2,098 ±2.659 keV
β⁻ decay energy	-1,837 ±52 keV
β⁻ decay energy with neutron	-8,792 ±3.005 keV
Magnetic dipole moment	3.09 ±0.01 μN
Electric quadrupole moment	-2.02 ±0.02 b

Point at nuclide

179HfHafnium-179

Classification	z: 72; n: 107; m: 179
Half life	stable nuclide
Natural abundance	13.62 ±0.11 %
Spin/parity	9/2+
Discovery	1934
Mass excess	-50,470 ±1.416 keV
Binding energy	8,038 ±0.0079 keV
Single-particle energy	7,414 ±2.055 keV
Neutron separation energy	6,098 ±0.0768 keV
Q value for electron capture	-1,405 ±5.341 keV
β⁻ decay energy	-105.6 ±0.4088 keV
β⁻ decay energy with neutron	-7,936 ±52 keV
Magnetic dipole moment	-0.6389 ±0.0014 μN
Electric quadrupole moment	3.79 ±0.03 b

Point at nuclide

180HfHafnium-180

Classification	z: 72; n: 108; m: 180
Half life	stable nuclide
Natural abundance	35.08 ±0.33 %
Spin/parity	0+
Discovery	1934
Mass excess	-49,780 ±1.421 keV
Binding energy	8,034 ±0.0079 keV
Single-particle energy	8,009 ±5.064 keV
Neutron separation energy	7,387 ±0.151 keV
Q value for electron capture	-3,103 ±70.7 keV
β⁻ decay energy	-845.9 ±2.347 keV
β⁻ decay energy with neutron	-7,494 ±0.4358 keV
Magnetic dipole moment	8.7 ±1 μN
Electric quadrupole moment	-2 ±0.02 b

Point at nuclide

181HfHafnium-181

Classification	z: 72; n: 109; m: 181
Half life	42.39 ±6 d
Natural abundance	synthetic nuclide
Spin/parity	1/2-
Decay modes	β⁻ decay
Discovery	1935
Mass excess	-47,410 ±1.423 keV
Binding energy	8,022 ±0.0079 keV
Single-particle energy	8,015 ±70.71 keV
Neutron separation energy	5,694 ±0.07 keV
Q value for electron capture	-2,606 ±125.7 keV
β⁻ decay energy	1,036 ±1.929 keV
β⁻ decay energy with neutron	-6,541 ±2.348 keV

Point at nuclide Decay chain of Hafnium-181

182HfHafnium-182

Classification	z: 72; n: 110; m: 182
Half life	8.9·10⁶ ±9 a
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay
Discovery	1961
Mass excess	-46,050 ±6.166 keV
Binding energy	8,014 ±0.0339 keV
Single-particle energy	8,541 ±125.9 keV
Neutron separation energy	6,717 ±6 keV
Q value for electron capture	-4,280 ±200 keV
β⁻ decay energy	381 ±6.302 keV
β⁻ decay energy with neutron	-5,682 ±6.302 keV

Point at nuclide Decay chain of Hafnium-182

183HfHafnium-183

Classification	z: 72; n: 111; m: 183
Half life	1.018 ±2 h
Natural abundance	synthetic nuclide
Spin/parity	(3/2-)
Decay modes	isomeric transition (γ emission); β⁻ decay
Discovery	1956
Mass excess	-43,290 ±30.04 keV
Binding energy	8,000 ±0.1642 keV
Single-particle energy	8,802 ±203 keV
Neutron separation energy	5,305 ±30.65 keV
Q value for electron capture	-3,568 ±85.55 keV
β⁻ decay energy	2,010 ±30 keV
β⁻ decay energy with neutron	-4,925 ±30 keV

Point at nuclide Decay chain of Hafnium-183

184HfHafnium-184

Classification	z: 72; n: 112; m: 184
Half life	4.12 ±5 h
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay
Discovery	1973
Mass excess	-41,500 ±39.7 keV
Binding energy	7,990 ±0.2158 keV
Single-particle energy	9,072 ±89.4 keV
Neutron separation energy	6,287 ±49.78 keV
Q value for electron capture	-5,200 ±203.9 keV
β⁻ decay energy	1,340 ±30 keV
β⁻ decay energy with neutron	-4,278 ±39.72 keV

Point at nuclide Decay chain of Hafnium-184

185HfHafnium-185

Classification	z: 72; n: 113; m: 185
Half life	3.5 ±6 m
Natural abundance	synthetic nuclide
Decay modes	β⁻ decay
Discovery	1993
Mass excess	-38,320 ±64.27 keV
Binding energy	7,973 ±0.3474 keV
Single-particle energy	9,308 ±210 keV
Neutron separation energy	4,891 ±75.54 keV
Q value for electron capture	-4,360 ±306.8 keV
β⁻ decay energy	3,074 ±65.81 keV
β⁻ decay energy with neutron	-3,552 ±69.33 keV

Point at nuclide Decay chain of Hafnium-185

186HfHafnium-186

Classification	z: 72; n: 114; m: 186
Half life	2.6 ±12 m
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay
Discovery	1998
Mass excess	-36,430 ±51.23 keV
Binding energy	7,964 ±0.2754 keV
Single-particle energy	9,753 ±304 keV
Neutron separation energy	6,175 ±82.19 keV
Q value for electron capture	-6,105 ±403.2 keV
β⁻ decay energy	2,183 ±78.9 keV
β⁻ decay energy with neutron	-3,102 ±53.15 keV

Point at nuclide Decay chain of Hafnium-186

187HfHafnium-187

Classification	z: 72; n: 115; m: 187
Half life	stable nuclide
Natural abundance	synthetic nuclide
Discovery	1999
Mass excess	-33,000 ±200 keV
Binding energy	7,947 ±1 keV
Single-particle energy	9,969 ±447 keV
Neutron separation energy	4,647 ±207 keV
Q value for electron capture	-5,230 ±447.2 keV
β⁻ decay energy	3,896 ±208 keV
β⁻ decay energy with neutron	-2,464 ±209 keV

Point at nuclide

188HfHafnium-188

Classification	z: 72; n: 116; m: 188
Half life	stable nuclide
Natural abundance	synthetic nuclide
Spin/parity	0+
Discovery	1999
Mass excess	-30,830 ±300 keV
Binding energy	7,936 ±2 keV
Single-particle energy	10,340 ±500 keV
Neutron separation energy	5,901 ±361 keV
Q value for electron capture	-7,010 ±500 keV
β⁻ decay energy	3,080 ±361 keV
β⁻ decay energy with neutron	-2,005 ±305 keV

Point at nuclide

189HfHafnium-189

Classification	z: 72; n: 117; m: 189
Half life	stable nuclide
Natural abundance	synthetic nuclide
Discovery	2009
Mass excess	-27,150 ±300 keV
Binding energy	7,917 ±2 keV
Single-particle energy	10,610 ±500 keV
Neutron separation energy	4,392 ±424 keV
β⁻ decay energy	4,809 ±361 keV
β⁻ decay energy with neutron	-1,311 ±361 keV

Point at nuclide

190HfHafnium-190

Classification	z: 72; n: 118; m: 190
Half life	stable nuclide
Natural abundance	synthetic nuclide
Spin/parity	0+
Discovery	2012
Mass excess	-24,800 ±400 keV
Binding energy	7,905 ±2 keV
Neutron separation energy	5,721 ±500 keV
β⁻ decay energy	3,920 ±447 keV
β⁻ decay energy with neutron	-912 ±447 keV

Point at nuclide

Isotopes of Hafnium

151HfHafnium-151ads_clickdownload

153HfHafnium-153ads_clickdownload

154HfHafnium-154ads_clickcall_splitdownload

155HfHafnium-155ads_clickcall_splitdownload

156HfHafnium-156ads_clickcall_splitdownload

157HfHafnium-157ads_clickcall_splitdownload

158HfHafnium-158ads_clickcall_splitdownload

159HfHafnium-159ads_clickcall_splitdownload

160HfHafnium-160ads_clickcall_splitdownload

161HfHafnium-161ads_clickcall_splitdownload

162HfHafnium-162ads_clickcall_splitdownload

163HfHafnium-163ads_clickcall_splitdownload

164HfHafnium-164ads_clickcall_splitdownload

165HfHafnium-165ads_clickcall_splitdownload

166HfHafnium-166ads_clickcall_splitdownload

167HfHafnium-167ads_clickcall_splitdownload

168HfHafnium-168ads_clickcall_splitdownload

169HfHafnium-169ads_clickcall_splitdownload

170HfHafnium-170ads_clickcall_splitdownload

171HfHafnium-171ads_clickcall_splitdownload

172HfHafnium-172ads_clickcall_splitdownload

173HfHafnium-173ads_clickcall_splitdownload

174HfHafnium-174ads_clickcall_splitdownload

175HfHafnium-175ads_clickcall_splitdownload

176HfHafnium-176ads_clickdownload

177HfHafnium-177ads_clickdownload

178HfHafnium-178ads_clickdownload

179HfHafnium-179ads_clickdownload

180HfHafnium-180ads_clickdownload

181HfHafnium-181ads_clickcall_splitdownload

182HfHafnium-182ads_clickcall_splitdownload

183HfHafnium-183ads_clickcall_splitdownload

184HfHafnium-184ads_clickcall_splitdownload

185HfHafnium-185ads_clickcall_splitdownload

186HfHafnium-186ads_clickcall_splitdownload

187HfHafnium-187ads_clickdownload

188HfHafnium-188ads_clickdownload

189HfHafnium-189ads_clickdownload

190HfHafnium-190ads_clickdownload

151HfHafnium-151

153HfHafnium-153

154HfHafnium-154

155HfHafnium-155

156HfHafnium-156

157HfHafnium-157

158HfHafnium-158

159HfHafnium-159

160HfHafnium-160

161HfHafnium-161

162HfHafnium-162

163HfHafnium-163

164HfHafnium-164

165HfHafnium-165

166HfHafnium-166

167HfHafnium-167

168HfHafnium-168

169HfHafnium-169

170HfHafnium-170

171HfHafnium-171

172HfHafnium-172

173HfHafnium-173

174HfHafnium-174

175HfHafnium-175

176HfHafnium-176

177HfHafnium-177

178HfHafnium-178

179HfHafnium-179

180HfHafnium-180

181HfHafnium-181

182HfHafnium-182

183HfHafnium-183

184HfHafnium-184

185HfHafnium-185

186HfHafnium-186

187HfHafnium-187

188HfHafnium-188

189HfHafnium-189

190HfHafnium-190