Isotopes of Chromium

List of known isotopes of the element Chromium.

Isotope	t½	%	Spin/parity	Radius	Isotopic mass	Discovery
⁴²Cr	13.3 ±10 ms	syn.	0+	—	4.2·10⁷ ±322 keV/c²	1996
⁴³Cr	21.2 ±7 ms	syn.	(3/2+)	—	4.299·10⁷ ±215 keV/c²	1992
⁴⁴Cr	42.8 ±6 ms	syn.	0+	—	4.398·10⁷ ±55 keV/c²	1987
⁴⁵Cr	60.9 ±4 ms	syn.	(7/2-)	—	4.497·10⁷ ±38 keV/c²	1974
⁴⁶Cr	0.26 ±6 s	syn.	0+	—	4.596·10⁷ ±12.29 keV/c²	1972
⁴⁷Cr	500 ±15 ms	syn.	3/2-	—	4.696·10⁷ ±5.578 keV/c²	1972
⁴⁸Cr	21.56 ±3 h	syn.	0+	—	4.795·10⁷ ±7.848 keV/c²	1952
⁴⁹Cr	42.3 ±1 m	syn.	5/2-	—	4.895·10⁷ ±2.363 keV/c²	1942
⁵⁰Cr	1.3·10¹⁸ a	4.345 ±0.013 %	0+	3.658 ±0.0065 fm	4.994·10⁷ ±0.1 keV/c²	1930
⁵¹Cr	27.7 ±4 d	syn.	7/2-	—	5.094·10⁷ ±0.178 keV/c²	1940
⁵²Cr	stab.	83.78 ±0.018 %	0+	3.645 ±0.0042 fm	5.194·10⁷ ±0.12 keV/c²	1923
⁵³Cr	stab.	9.501 ±0.017 %	3/2-	3.651 ±0.0075 fm	5.294·10⁷ ±0.124 keV/c²	1930
⁵⁴Cr	stab.	2.365 ±0.007 %	0+	3.688 ±0.0074 fm	5.393·10⁷ ±0.142 keV/c²	1930
⁵⁵Cr	3.497 ±3 m	syn.	3/2-	—	5.494·10⁷ ±0.245 keV/c²	1952
⁵⁶Cr	5.94 ±10 m	syn.	0+	—	5.594·10⁷ ±0.62 keV/c²	1960
⁵⁷Cr	21.1 ±10 s	syn.	(3/2)-	—	5.694·10⁷ ±2 keV/c²	1978
⁵⁸Cr	7 ±3 s	syn.	0+	—	5.794·10⁷ ±3.2 keV/c²	1980
⁵⁹Cr	0.74 ±28 s	syn.	(1/2-)	—	5.894·10⁷ ±0.72 keV/c²	1980
⁶⁰Cr	0.49 ±1 s	syn.	0+	—	5.994·10⁷ ±1.2 keV/c²	1980
⁶¹Cr	234 ±11 ms	syn.	(5/2-)	—	6.095·10⁷ ±2 keV/c²	1985
⁶²Cr	206 ±12 ms	syn.	0+	—	6.195·10⁷ ±3.7 keV/c²	1985
⁶³Cr	129 ±2 ms	syn.	1/2-	—	6.296·10⁷ ±78 keV/c²	1992
⁶⁴Cr	42.9 ±10 ms	syn.	0+	—	6.396·10⁷ ±322 keV/c²	1992
⁶⁵Cr	27 ±3 ms	syn.	(1/2-)	—	6.496·10⁷ ±215 keV/c²	1997
⁶⁶Cr	24 ±2 ms	syn.	0+	—	6.597·10⁷ ±322 keV/c²	1997
⁶⁷Cr	stab.	syn.	—	—	6.697·10⁷ ±429 keV/c²	1997
⁶⁸Cr	360 ns	syn.	0+	—	6.798·10⁷ ±537 keV/c²	2009
⁶⁹Cr	620 ns	syn.	—	—	6.898·10⁷ ±537 keV/c²	2013
⁷⁰Cr	620 ns	syn.	0+	—	6.999·10⁷ ±644 keV/c²	2013

42CrChromium-42

Classification	z: 24; n: 18; m: 42
Half life	13.3 ±10 ms
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture + β⁺ decay; electron capture + proton emission
Discovery	1996
Mass excess	7,060 ±300 keV
Binding energy	7,456 ±7 keV
Single-particle energy	539 ±361 keV
Neutron separation energy	21,420 ±500 keV
Q value for electron capture	14,680 ±358.3 keV

Point at nuclide Decay chain of Chromium-42

43CrChromium-43

Classification	z: 24; n: 19; m: 43
Half life	21.2 ±7 ms
Natural abundance	synthetic nuclide
Spin/parity	(3/2+)
Decay modes	electron capture + β⁺ decay; electron capture + proton emission; electron capture with two-proton emission
Discovery	1992
Mass excess	-1,970 ±200 keV
Binding energy	7,680 ±5 keV
Single-particle energy	1,639 ±280 keV
Neutron separation energy	17,100 ±361 keV
Q value for electron capture	15,940 ±204.5 keV
β⁻ decay energy	-19,340 ±447 keV

Point at nuclide Decay chain of Chromium-43

44CrChromium-44

Classification	z: 24; n: 20; m: 44
Half life	42.8 ±6 ms
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture + β⁺ decay; electron capture + proton emission
Discovery	1987
Mass excess	-13,430 ±51.23 keV
Binding energy	7,949 ±1.164 keV
Single-particle energy	2,794 ±66.78 keV
Neutron separation energy	19,520 ±207 keV
Q value for electron capture	10,380 ±51.74 keV
β⁻ decay energy	-20,890 ±304 keV
β⁻ decay energy with neutron	-38,870 ±403 keV

Point at nuclide Decay chain of Chromium-44

45CrChromium-45

Classification	z: 24; n: 21; m: 45
Half life	60.9 ±4 ms
Natural abundance	synthetic nuclide
Spin/parity	(7/2-)
Decay modes	β⁺ decay; β⁺ decay + proton emission
Discovery	1974
Mass excess	-19,520 ±35.39 keV
Binding energy	8,087 ±0.7866 keV
Single-particle energy	2,995 ±36.13 keV
Neutron separation energy	14,160 ±62.27 keV
Q value for electron capture	12,370 ±35.4 keV
β⁻ decay energy	-14,540 ±302 keV
β⁻ decay energy with neutron	-35,050 ±302 keV

Point at nuclide Decay chain of Chromium-45

46CrChromium-46

Classification	z: 24; n: 22; m: 46
Half life	0.26 ±6 s
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture + β⁺ decay
Discovery	1972
Mass excess	-29,480 ±11.45 keV
Binding energy	8,303 ±0.249 keV
Single-particle energy	4,874 ±11.48 keV
Neutron separation energy	18,020 ±37.2 keV
Q value for electron capture	7,604 ±11.45 keV
β⁻ decay energy	-17,060 ±87.38 keV
β⁻ decay energy with neutron	-32,570 ±300 keV

Point at nuclide Decay chain of Chromium-46

47CrChromium-47

Classification	z: 24; n: 23; m: 47
Half life	500 ±15 ms
Natural abundance	synthetic nuclide
Spin/parity	3/2-
Decay modes	electron capture + β⁺ decay
Discovery	1972
Mass excess	-34,570 ±5.197 keV
Binding energy	8,407 ±0.1106 keV
Single-particle energy	4,776 ±5.198 keV
Neutron separation energy	13,160 ±12.57 keV
Q value for electron capture	7,443 ±5.198 keV
β⁻ decay energy	-12,000 ±32.09 keV
β⁻ decay energy with neutron	-30,220 ±86.78 keV

Point at nuclide Decay chain of Chromium-47

48CrChromium-48

Classification	z: 24; n: 24; m: 48
Half life	21.56 ±3 h
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture + β⁺ decay
Discovery	1952
Mass excess	-42,830 ±7.311 keV
Binding energy	8,572 ±0.1523 keV
Single-particle energy	8,103 ±7.311 keV
Neutron separation energy	16,320 ±8.969 keV
Q value for electron capture	1,656 ±7.375 keV
β⁻ decay energy	-13,530 ±9.915 keV
β⁻ decay energy with neutron	-28,330 ±32.5 keV

Point at nuclide Decay chain of Chromium-48

49CrChromium-49

Classification	z: 24; n: 25; m: 49
Half life	42.3 ±1 m
Natural abundance	synthetic nuclide
Spin/parity	5/2-
Decay modes	electron capture + β⁺ decay
Discovery	1942
Mass excess	-45,340 ±2.202 keV
Binding energy	8,613 ±0.0449 keV
Single-particle energy	8,143 ±2.404 keV
Neutron separation energy	10,580 ±7.634 keV
Q value for electron capture	2,629 ±2.351 keV
β⁻ decay energy	-7,713 ±0.2329 keV
β⁻ decay energy with neutron	-24,110 ±7.051 keV
Magnetic dipole moment	0.476 ±0.003 μN

Point at nuclide Decay chain of Chromium-49

50CrChromium-50

Classification	z: 24; n: 26; m: 50
Half life	1.3·10¹⁸ a
Natural abundance	4.345 ±0.013 %
Spin/parity	0+
Decay modes	double electron capture
Discovery	1930
Mass excess	-50,270 ±0.094 keV
Binding energy	8,701 ±0.0019 keV
Single-particle energy	9,588 ±0.8224 keV
Neutron separation energy	13,000 ±2.2 keV
Q value for electron capture	-1,039 ±0.132 keV
β⁻ decay energy	-7,635 ±0.0672 keV
β⁻ decay energy with neutron	-20,720 ±2.212 keV
Magnetic dipole moment	3.1 ±0.8 μN
Electric quadrupole moment	-0.36 ±0.07 b

Point at nuclide Decay chain of Chromium-50

51CrChromium-51

Classification	z: 24; n: 27; m: 51
Half life	27.7 ±4 d
Natural abundance	synthetic nuclide
Spin/parity	7/2-
Decay modes	electron capture (EC)
Discovery	1940
Mass excess	-51,460 ±0.167 keV
Binding energy	8,711 ±0.0033 keV
Single-particle energy	9,516 ±0.151 keV
Neutron separation energy	9,260 ±0.1477 keV
Q value for electron capture	752.3 ±0.19 keV
β⁻ decay energy	-3,208 ±0.3256 keV
β⁻ decay energy with neutron	-16,900 ±0.1623 keV
Magnetic dipole moment	-0.934 ±0.005 μN

Point at nuclide Decay chain of Chromium-51

52CrChromium-52

Classification	z: 24; n: 28; m: 52
Half life	stable nuclide
Natural abundance	83.78 ±0.018 %
Spin/parity	0+
Discovery	1923
Mass excess	-55,420 ±0.112 keV
Binding energy	8,775 ±0.0022 keV
Single-particle energy	10,500 ±0.099 keV
Neutron separation energy	12,040 ±0.1697 keV
Q value for electron capture	-3,977 ±0.194 keV
β⁻ decay energy	-4,709 ±0.0633 keV
β⁻ decay energy with neutron	-15,250 ±0.305 keV
Magnetic dipole moment	2.4 ±0.4 μN
Electric quadrupole moment	-0.08 ±0.02 b

Point at nuclide

53CrChromium-53

Classification	z: 24; n: 29; m: 53
Half life	stable nuclide
Natural abundance	9.501 ±0.017 %
Spin/parity	3/2-
Discovery	1930
Mass excess	-55,290 ±0.116 keV
Binding energy	8,760 ±0.0022 keV
Single-particle energy	11,130 ±0.1624 keV
Neutron separation energy	7,939 ±0.0966 keV
Q value for electron capture	-3,436 ±3.105 keV
β⁻ decay energy	-597.3 ±0.343 keV
β⁻ decay energy with neutron	-12,650 ±0.1155 keV
Magnetic dipole moment	-0.4744 ±7·10^-5 μN
Electric quadrupole moment	-0.15 ±0.05 b

Point at nuclide

54CrChromium-54

Classification	z: 24; n: 30; m: 54
Half life	stable nuclide
Natural abundance	2.365 ±0.007 %
Spin/parity	0+
Discovery	1930
Mass excess	-56,940 ±0.132 keV
Binding energy	8,777 ±0.0025 keV
Single-particle energy	12,370 ±3.1 keV
Neutron separation energy	9,719 ±0.1013 keV
Q value for electron capture	-7,038 ±11.18 keV
β⁻ decay energy	-1,378 ±1.005 keV
β⁻ decay energy with neutron	-10,320 ±0.3498 keV
Magnetic dipole moment	1.7 ±0.2 μN
Electric quadrupole moment	-0.21 ±0.08 b

Point at nuclide

55CrChromium-55

Classification	z: 24; n: 31; m: 55
Half life	3.497 ±3 m
Natural abundance	synthetic nuclide
Spin/parity	3/2-
Decay modes	β⁻ decay
Discovery	1952
Mass excess	-55,120 ±0.228 keV
Binding energy	8,731 ±0.0042 keV
Single-particle energy	12,500 ±11.18 keV
Neutron separation energy	6,246 ±0.1859 keV
Q value for electron capture	-5,986 ±27.01 keV
β⁻ decay energy	2,602 ±0.3219 keV
β⁻ decay energy with neutron	-7,624 ±1.022 keV

Point at nuclide Decay chain of Chromium-55

56CrChromium-56

Classification	z: 24; n: 32; m: 56
Half life	5.94 ±10 m
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay
Discovery	1960
Mass excess	-55,290 ±0.578 keV
Binding energy	8,723 ±0.0103 keV
Single-particle energy	13,440 ±27.01 keV
Neutron separation energy	8,246 ±0.6099 keV
Q value for electron capture	-9,102 ±175.8 keV
β⁻ decay energy	1,626 ±0.5524 keV
β⁻ decay energy with neutron	-5,644 ±0.5358 keV

Point at nuclide Decay chain of Chromium-56

57CrChromium-57

Classification	z: 24; n: 33; m: 57
Half life	21.1 ±10 s
Natural abundance	synthetic nuclide
Spin/parity	(3/2)-
Decay modes	β⁻ decay
Discovery	1978
Mass excess	-52,530 ±1.863 keV
Binding energy	8,663 ±0.0327 keV
Single-particle energy	13,630 ±175.8 keV
Neutron separation energy	5,311 ±1.95 keV
Q value for electron capture	-8,090 ±84.78 keV
β⁻ decay energy	4,961 ±2.394 keV
β⁻ decay energy with neutron	-3,685 ±1.885 keV

Point at nuclide Decay chain of Chromium-57

58CrChromium-58

Classification	z: 24; n: 34; m: 58
Half life	7 ±3 s
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay
Discovery	1980
Mass excess	-52,000 ±2.981 keV
Binding energy	8,643 ±0.0514 keV
Single-particle energy	14,840 ±84.81 keV
Neutron separation energy	7,538 ±3.515 keV
Q value for electron capture	-11,570 ±95.86 keV
β⁻ decay energy	3,835 ±4.022 keV
β⁻ decay energy with neutron	-2,577 ±3.339 keV

Point at nuclide Decay chain of Chromium-58

59CrChromium-59

Classification	z: 24; n: 35; m: 59
Half life	0.74 ±28 s
Natural abundance	synthetic nuclide
Spin/parity	(1/2-)
Decay modes	β⁻ decay
Discovery	1980
Mass excess	-48,120 ±0.671 keV
Binding energy	8,568 ±0.0114 keV
Single-particle energy	14,970 ±95.81 keV
Neutron separation energy	4,195 ±3.055 keV
Q value for electron capture	-10,510 ±137.4 keV
β⁻ decay energy	7,409 ±2.423 keV
β⁻ decay energy with neutron	-359.7 ±2.783 keV

Point at nuclide Decay chain of Chromium-59

60CrChromium-60

Classification	z: 24; n: 36; m: 60
Half life	0.49 ±1 s
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	1980
Mass excess	-46,910 ±1.118 keV
Binding energy	8,540 ±0.0186 keV
Single-particle energy	16,580 ±137.4 keV
Neutron separation energy	6,863 ±1.303 keV
Q value for electron capture	-13,830 ±181.9 keV
β⁻ decay energy	6,059 ±2.583 keV
β⁻ decay energy with neutron	545.5 ±2.583 keV

Point at nuclide Decay chain of Chromium-60

61CrChromium-61

Classification	z: 24; n: 37; m: 61
Half life	234 ±11 ms
Natural abundance	synthetic nuclide
Spin/parity	(5/2-)
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	1985
Mass excess	-42,500 ±1.863 keV
Binding energy	8,460 ±0.0305 keV
Single-particle energy	16,690 ±181.9 keV
Neutron separation energy	3,659 ±2.172 keV
Q value for electron capture	-12,320 ±234.9 keV
β⁻ decay energy	9,245 ±2.982 keV
β⁻ decay energy with neutron	2,400 ±2.982 keV

Point at nuclide Decay chain of Chromium-61

62CrChromium-62

Classification	z: 24; n: 38; m: 62
Half life	206 ±12 ms
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	1985
Mass excess	-40,860 ±3.447 keV
Binding energy	8,427 ±0.0556 keV
Single-particle energy	17,960 ±234.9 keV
Neutron separation energy	6,427 ±3.917 keV
Q value for electron capture	-15,640 ±264.3 keV
β⁻ decay energy	7,671 ±7.394 keV
β⁻ decay energy with neutron	2,818 ±4.159 keV

Point at nuclide Decay chain of Chromium-62

63CrChromium-63

Classification	z: 24; n: 39; m: 63
Half life	129 ±2 ms
Natural abundance	synthetic nuclide
Spin/parity	1/2-
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	1992
Mass excess	-36,180 ±72.65 keV
Binding energy	8,347 ±1.153 keV
Single-particle energy	18,250 ±274 keV
Neutron separation energy	3,397 ±72.73 keV
Q value for electron capture	-14,440 ±347.6 keV
β⁻ decay energy	10,700 ±72.75 keV
β⁻ decay energy with neutron	4,274 ±72.95 keV

Point at nuclide Decay chain of Chromium-63

64CrChromium-64

Classification	z: 24; n: 40; m: 64
Half life	42.9 ±10 ms
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	1992
Mass excess	-33,640 ±299.9 keV
Binding energy	8,303 ±4.686 keV
Single-particle energy	19,180 ±453.3 keV
Neutron separation energy	5,532 ±308.6 keV
Q value for electron capture	-17,320 ±499.9 keV
β⁻ decay energy	9,349 ±299.9 keV
β⁻ decay energy with neutron	5,175 ±299.9 keV

Point at nuclide Decay chain of Chromium-64

65CrChromium-65

Classification	z: 24; n: 41; m: 65
Half life	27 ±3 ms
Natural abundance	synthetic nuclide
Spin/parity	(1/2-)
Decay modes	β⁻ decay
Discovery	1997
Mass excess	-28,310 ±200 keV
Binding energy	8,218 ±3 keV
Single-particle energy	19,270 ±447 keV
Neutron separation energy	2,741 ±361 keV
Q value for electron capture	-16,200 ±538.5 keV
β⁻ decay energy	12,650 ±200 keV
β⁻ decay energy with neutron	6,608 ±200 keV

Point at nuclide Decay chain of Chromium-65

66CrChromium-66

Classification	z: 24; n: 42; m: 66
Half life	24 ±2 ms
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay
Discovery	1997
Mass excess	-25,140 ±300 keV
Binding energy	8,168 ±5 keV
Single-particle energy	20,310 ±583 keV
Neutron separation energy	4,901 ±361 keV
Q value for electron capture	-18,840 ±583 keV
β⁻ decay energy	11,610 ±300 keV
β⁻ decay energy with neutron	7,756 ±300 keV

Point at nuclide Decay chain of Chromium-66

67CrChromium-67

Classification	z: 24; n: 43; m: 67
Half life	stable nuclide
Natural abundance	synthetic nuclide
Discovery	1997
Mass excess	-19,270 ±400 keV
Binding energy	8,079 ±6 keV
Single-particle energy	20,250 ±640 keV
Neutron separation energy	2,201 ±500 keV
Q value for electron capture	-17,530 ±721.1 keV
β⁻ decay energy	14,310 ±447 keV
β⁻ decay energy with neutron	9,409 ±400 keV

Point at nuclide

68CrChromium-68

Classification	z: 24; n: 44; m: 68
Half life	360 ns
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	2009
Mass excess	-15,690 ±500 keV
Binding energy	8,026 ±7 keV
Single-particle energy	21,230 ±781 keV
Neutron separation energy	4,492 ±640 keV
β⁻ decay energy	13,230 ±583 keV
β⁻ decay energy with neutron	9,819 ±539 keV

Point at nuclide Decay chain of Chromium-68

69CrChromium-69

Classification	z: 24; n: 45; m: 69
Half life	620 ns
Natural abundance	synthetic nuclide
Decay modes	β⁻ decay; β⁻ decay with neutron emission; β⁻ decay with two-neutron emission
Discovery	2013
Mass excess	-9,630 ±500 keV
Binding energy	7,939 ±7 keV
Neutron separation energy	2,011 ±707 keV
β⁻ decay energy	15,730 ±640 keV
β⁻ decay energy with neutron	11,210 ±583 keV

Point at nuclide Decay chain of Chromium-69

70CrChromium-70

Classification	z: 24; n: 46; m: 70
Half life	620 ns
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay; β⁻ decay with neutron emission; β⁻ decay with two-neutron emission
Discovery	2013
Mass excess	-5,640 ±600 keV
Binding energy	7,884 ±9 keV
Neutron separation energy	4,082 ±781 keV
β⁻ decay energy	14,810 ±781 keV
β⁻ decay energy with neutron	11,640 ±721 keV

Point at nuclide Decay chain of Chromium-70

Isotopes of Chromium

42CrChromium-42ads_clickcall_splitdownload

43CrChromium-43ads_clickcall_splitdownload

44CrChromium-44ads_clickcall_splitdownload

45CrChromium-45ads_clickcall_splitdownload

46CrChromium-46ads_clickcall_splitdownload

47CrChromium-47ads_clickcall_splitdownload

48CrChromium-48ads_clickcall_splitdownload

49CrChromium-49ads_clickcall_splitdownload

50CrChromium-50ads_clickcall_splitdownload

51CrChromium-51ads_clickcall_splitdownload

52CrChromium-52ads_clickdownload

53CrChromium-53ads_clickdownload

54CrChromium-54ads_clickdownload

55CrChromium-55ads_clickcall_splitdownload

56CrChromium-56ads_clickcall_splitdownload

57CrChromium-57ads_clickcall_splitdownload

58CrChromium-58ads_clickcall_splitdownload

59CrChromium-59ads_clickcall_splitdownload

60CrChromium-60ads_clickcall_splitdownload

61CrChromium-61ads_clickcall_splitdownload

62CrChromium-62ads_clickcall_splitdownload

63CrChromium-63ads_clickcall_splitdownload

64CrChromium-64ads_clickcall_splitdownload

65CrChromium-65ads_clickcall_splitdownload

66CrChromium-66ads_clickcall_splitdownload

67CrChromium-67ads_clickdownload

68CrChromium-68ads_clickcall_splitdownload

69CrChromium-69ads_clickcall_splitdownload

70CrChromium-70ads_clickcall_splitdownload

42CrChromium-42

43CrChromium-43

44CrChromium-44

45CrChromium-45

46CrChromium-46

47CrChromium-47

48CrChromium-48

49CrChromium-49

50CrChromium-50

51CrChromium-51

52CrChromium-52

53CrChromium-53

54CrChromium-54

55CrChromium-55

56CrChromium-56

57CrChromium-57

58CrChromium-58

59CrChromium-59

60CrChromium-60

61CrChromium-61

62CrChromium-62

63CrChromium-63

64CrChromium-64

65CrChromium-65

66CrChromium-66

67CrChromium-67

68CrChromium-68

69CrChromium-69

70CrChromium-70