Copper (Cu)

Red-brown transition element. Known by the Romans as 'cuprum.' Extracted and used for thousands of years. Malleable, ductile and an excellent conductor of heat and electricity. When in moist conditions, a greenish layer forms on the outside.

Atomic Number	29
Atomic Weight	63.546
Mass Number	63

Group	11
Period	4
Block	d

Protons	29 p⁺
Neutrons	34 n⁰
Electrons	29 e^-

Properties

Energy
Atomic Radius	135 pm 217 pm
Molar Volume	7.1 cm³/mol
Covalent Radius	112 pm 115 pm 120 pm 137 pm 132 pm
Metallic Radius	118 pm 128 pm
Ionic Radius	46 pm 60 pm 77 pm 57 pm 57 pm 65 pm 73 pm 54 pm
Crystal Radius	60 pm 74 pm 91 pm 71 pm 71 pm 79 pm 87 pm 60 pm
Van der Waals Radius	200 pm 196 pm 226 pm 349.5 pm
Density	8.96 g/cm³ 8,020 kg/m³
Proton Affinity	655.3 kJ/mol
Electron Affinity	1.235 eV/particle
Ionization Energy	7.72638 eV/particle 20.29239 eV/particle 36.841 eV/particle 57.38 eV/particle 79.8 eV/particle 103 eV/particle 139 eV/particle 166 eV/particle 198 eV/particle 232.2 eV/particle 265 eV/particle 367.03 eV/particle 400.98 eV/particle 436.04 eV/particle 483.13 eV/particle 518.7 eV/particle 552.8 eV/particle 632.48 eV/particle 670.608 eV/particle 1,690.5 eV/particle 1,800 eV/particle 1,918 eV/particle 2,044 eV/particle 2,179.4 eV/particle 2,307 eV/particle 2,479.1 eV/particle 2,586.954 eV/particle 11,062.4309 eV/particle 11,567.612 eV/particle

Heat of Vaporization	304.6 kJ/mol
Heat of Fusion	13.01 kJ/mol
Heat of Formation	337.4 kJ/mol
Electrons
Electron Shells	2, 8, 18, 1

Valence Electrons	1
Electron Configuration	[Ar] 3d¹⁰ 4s¹

Oxidation States	-2, 0, 1, 2, 3, 4
Electronegativity	10.96 eV/particle 0.1511716 1.9
Electrophilicity	1.546403297611602 eV/particle
Phases
Phase	Solid
Gas Phase
Boiling Point	2,833.15 K
Melting Point	1,357.77 K
Critical Pressure
Critical Temperature
Triple Point
Visual
Color	Copper #a52a2a #c88033 #c88033
Appearance	red-orange metallic luster
Refractive Index
Thermodynamic Properties
Thermal Conductivity	401 W/(m K)
Thermal Expansion	0.0000165 1/K
Molar Heat Capacity	24.44 J/(mol K)
Specific Heat Capacity	0.385 J/(g⋅K)
Heat Capacity Ratio (Adiabatic Index)
Electrical Properties
Type	Conductor
Electrical Conductivity	59 MS/m
Electrical Resistivity	0.000000017 m Ω
Superconducting Point
Magnetism
Type	diamagnetic
Magnetic Susceptibility (Mass)	-0.00000000108 m³/Kg
Magnetic Susceptibility (Molar)	-0.0000000000686 m³/mol
Magnetic Susceptibility (Volume)	-0.00000963
Magnetic Ordering
Curie Point
Neel Point
Structure
Crystal Structure	Face Centered Cubic (FCC)
Lattice Constant	3.61 Å
Lattice Angles	π/2, π/2, π/2
Mechanical Properties
Hardness	874 MPa 3 MPa 369 MPa
Bulk Modulus	140 GPa
Shear Modulus	48 GPa
Young Modulus	130 GPa
Poisson Ratio	0.34
Speed of Sound	3,570 m/s
Classification
Category	Transition metals, Transition metals
CAS Group	IB
IUPAC Group	IB
Glawe Number	68
Mendeleev Number	71
Pettifor Number	72
Geochemical Class	first series transition metal
Goldschmidt Class	chalcophile
Other
Gas Basicity	632.4 kJ/mol
Dipole Polarizability	46.5 ± 0.5 a₀
C6 Dispersion Coefficient	253 a₀ 264 a₀
Allotropes
Neutron Cross Section	3.78
Neutron Mass Absorption	0.0021
Quantum Numbers	2S1/2
Space Group	225 (Fm_3m)

Isotopes of Copper

Stable Isotopes	2
Unstable Isotopes	31
Radioactive Isotopes	27

⁵²Cu

Abundance
Relative Atomic Mass	51.997982 ± 0.000644 Da
Mass Number	52
G-Factor
Half Life
Spin	3
Quadrupole Moment
Discovery Year
Parity	+

⁵²Cu Decay Modes

Decay Mode	Intensity
p (proton emission)	%

⁵³Cu

Abundance
Relative Atomic Mass	52.985894 ± 0.000537 Da
Mass Number	53
G-Factor
Half Life
Spin	3/2
Quadrupole Moment
Discovery Year
Parity	-

⁵³Cu Decay Modes

Decay Mode	Intensity
p (proton emission)	%

⁵⁴Cu

Abundance
Relative Atomic Mass	53.977198 ± 0.000429 Da
Mass Number	54
G-Factor
Half Life
Spin	3
Quadrupole Moment
Discovery Year
Parity	+

⁵⁴Cu Decay Modes

Decay Mode	Intensity
p (proton emission)	%

⁵⁵Cu

Abundance	Radioactive ☢️
Relative Atomic Mass	54.966038 ± 0.000167 Da
Mass Number	55
G-Factor
Half Life	55.9 ± 1.5 ms
Spin	3/2
Quadrupole Moment
Discovery Year	1987
Parity	-

⁵⁵Cu Decay Modes

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)	%

⁵⁶Cu

Abundance	Radioactive ☢️
Relative Atomic Mass	55.958529278 ± 0.000006864 Da
Mass Number	56
G-Factor
Half Life	80.8 ± 0.6 ms
Spin	4
Quadrupole Moment
Discovery Year	1987
Parity	+

⁵⁶Cu Decay Modes

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)	0.4%

⁵⁷Cu

Abundance	Radioactive ☢️
Relative Atomic Mass	56.949211686 ± 0.000000537 Da
Mass Number	57
G-Factor	1.7213333333333 ± 0.0046666666666667
Half Life	196.4 ± 0.7 ms
Spin	3/2
Quadrupole Moment
Discovery Year	1976
Parity	-

⁵⁷Cu Decay Modes

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁵⁸Cu

Abundance	Radioactive ☢️
Relative Atomic Mass	57.944532283 ± 0.000000604 Da
Mass Number	58
G-Factor	0.571 ± 0.002
Half Life	3.204 ± 0.007 s
Spin	1
Quadrupole Moment
Discovery Year	1952
Parity	+

⁵⁸Cu Decay Modes

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁵⁹Cu

Abundance	Radioactive ☢️
Relative Atomic Mass	58.939496713 ± 0.000000566 Da
Mass Number	59
G-Factor	1.2620666666667 ± 0.0006
Half Life	81.5 ± 0.5 s
Spin	3/2
Quadrupole Moment
Discovery Year	1947
Parity	-

⁵⁹Cu Decay Modes

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁶⁰Cu

Abundance	Radioactive ☢️
Relative Atomic Mass	59.937363787 ± 0.000001731 Da
Mass Number	60
G-Factor	0.61 ± 0.00025
Half Life	23.7 ± 0.4 m
Spin	2
Quadrupole Moment
Discovery Year	1947
Parity	+

⁶⁰Cu Decay Modes

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁶¹Cu

Abundance	Radioactive ☢️
Relative Atomic Mass	60.933457375 ± 0.00000102 Da
Mass Number	61
G-Factor	1.4071333333333 ± 0.00033333333333333
Half Life	3.343 ± 0.016 h
Spin	3/2
Quadrupole Moment
Discovery Year	1937
Parity	-

⁶¹Cu Decay Modes

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁶²Cu

Abundance	Radioactive ☢️
Relative Atomic Mass	61.932594803 ± 0.000000683 Da
Mass Number	62
G-Factor	-0.38 ± 0.0004
Half Life	9.672 ± 0.008 m
Spin	1
Quadrupole Moment
Discovery Year	1936
Parity	+

⁶²Cu Decay Modes

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁶³Cu

Abundance	69.15 ± 0.15
Relative Atomic Mass	62.929597119 ± 0.000000457 Da
Mass Number	63
G-Factor
Half Life
Spin	3/2
Quadrupole Moment	-0.22 ± 0.015
Discovery Year	1923
Parity	-

⁶⁴Cu

Abundance	Radioactive ☢️
Relative Atomic Mass	63.929764001 ± 0.000000458 Da
Mass Number	64
G-Factor	-0.2166 ± 0.0004
Half Life	12.7004 ± 0.0013 h
Spin	1
Quadrupole Moment
Discovery Year	1936
Parity	+

⁶⁴Cu Decay Modes

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	61.52%
β⁻ (β⁻ decay)	38.48%

⁶⁵Cu

Abundance	30.85 ± 0.15
Relative Atomic Mass	64.927789476 ± 0.00000069 Da
Mass Number	65
G-Factor
Half Life
Spin	3/2
Quadrupole Moment	-0.204 ± 0.014
Discovery Year	1923
Parity	-

⁶⁶Cu

Abundance	Radioactive ☢️
Relative Atomic Mass	65.928868804 ± 0.000000696 Da
Mass Number	66
G-Factor	-0.2826 ± 0.0008
Half Life	5.12 ± 0.014 m
Spin	1
Quadrupole Moment
Discovery Year	1937
Parity	+

⁶⁶Cu Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁶⁷Cu

Abundance	Radioactive ☢️
Relative Atomic Mass	66.92772949 ± 0.000000957 Da
Mass Number	67
G-Factor	1.6780666666667 ± 0.0004
Half Life	61.83 ± 0.12 h
Spin	3/2
Quadrupole Moment
Discovery Year	1948
Parity	-

⁶⁷Cu Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁶⁸Cu

Abundance	Radioactive ☢️
Relative Atomic Mass	67.929610887 ± 0.0000017 Da
Mass Number	68
G-Factor	2.396 ± 0.0006
Half Life	30.9 ± 0.6 s
Spin	1
Quadrupole Moment
Discovery Year	1953
Parity	+

⁶⁸Cu Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁶⁹Cu

Abundance	Radioactive ☢️
Relative Atomic Mass	68.929429267 ± 0.0000015 Da
Mass Number	69
G-Factor	1.8943333333333 ± 0.00066666666666667
Half Life	2.85 ± 0.15 m
Spin	3/2
Quadrupole Moment
Discovery Year	1966
Parity	-

⁶⁹Cu Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁷⁰Cu

Abundance	Radioactive ☢️
Relative Atomic Mass	69.932392078 ± 0.000001161 Da
Mass Number	70
G-Factor	0.22801666666667 ± 0.000083333333333333
Half Life	44.5 ± 0.2 s
Spin	6
Quadrupole Moment
Discovery Year	1971
Parity	-

⁷⁰Cu Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁷¹Cu

Abundance	Radioactive ☢️
Relative Atomic Mass	70.932676831 ± 0.0000016 Da
Mass Number	71
G-Factor
Half Life	19.4 ± 1.4 s
Spin	3/2
Quadrupole Moment
Discovery Year	1983
Parity	-

⁷¹Cu Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁷²Cu

Abundance	Radioactive ☢️
Relative Atomic Mass	71.935820306 ± 0.0000015 Da
Mass Number	72
G-Factor
Half Life	6.63 ± 0.03 s
Spin	2
Quadrupole Moment
Discovery Year	1983
Parity	-

⁷²Cu Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁷³Cu

Abundance	Radioactive ☢️
Relative Atomic Mass	72.936674376 ± 0.000002084 Da
Mass Number	73
G-Factor
Half Life	4.2 ± 0.12 s
Spin	3/2
Quadrupole Moment
Discovery Year	1983
Parity	-

⁷³Cu Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	0.029%

⁷⁴Cu

Abundance	Radioactive ☢️
Relative Atomic Mass	73.93987486 ± 0.0000066 Da
Mass Number	74
G-Factor	-0.5335 ± 0.0006
Half Life	1.606 ± 0.009 s
Spin	2
Quadrupole Moment
Discovery Year	1987
Parity	-

⁷⁴Cu Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	0.075%

⁷⁵Cu

Abundance	Radioactive ☢️
Relative Atomic Mass	74.941523817 ± 0.00000077 Da
Mass Number	75
G-Factor	0.40276 ± 0.0004
Half Life	1.224 ± 0.003 s
Spin	5/2
Quadrupole Moment
Discovery Year	1985
Parity	-

⁷⁵Cu Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	2.7%

⁷⁶Cu

Abundance	Radioactive ☢️
Relative Atomic Mass	75.945268974 ± 0.00000098 Da
Mass Number	76
G-Factor	-0.36356666666667 ± 0.0005
Half Life	637.7 ± 5.5 ms
Spin	3
Quadrupole Moment
Discovery Year	1987
Parity	-

⁷⁶Cu Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	7.2%

⁷⁷Cu

Abundance	Radioactive ☢️
Relative Atomic Mass	76.947543599 ± 0.0000013 Da
Mass Number	77
G-Factor	0.63852 ± 0.00068
Half Life	470.3 ± 1.7 ms
Spin	5/2
Quadrupole Moment
Discovery Year	1987
Parity	-

⁷⁷Cu Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	30.1%

⁷⁸Cu

Abundance	Radioactive ☢️
Relative Atomic Mass	77.951916524 ± 0.000014312 Da
Mass Number	78
G-Factor	0.039666666666667 ± 0.0005
Half Life	330.7 ± 2 ms
Spin	6
Quadrupole Moment
Discovery Year	1991
Parity	-

⁷⁸Cu Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	50.6%
2n (2-neutron emission)	%

⁷⁹Cu

Abundance	Radioactive ☢️
Relative Atomic Mass	78.9544731 ± 0.0001127 Da
Mass Number	79
G-Factor
Half Life	241.3 ± 2.1 ms
Spin	5/2
Quadrupole Moment
Discovery Year	1991
Parity	-

⁷⁹Cu Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	66%
2n (2-neutron emission)	%

⁸⁰Cu

Abundance	Radioactive ☢️
Relative Atomic Mass	79.960623 ± 0.000322 Da
Mass Number	80
G-Factor
Half Life	113.3 ± 6.4 ms
Spin
Quadrupole Moment
Discovery Year	1995
Parity

⁸⁰Cu Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	58%
2n (2-neutron emission)	%

⁸¹Cu

Abundance	Radioactive ☢️
Relative Atomic Mass	80.965743 ± 0.000322 Da
Mass Number	81
G-Factor
Half Life	73.2 ± 6.8 ms
Spin	5/2
Quadrupole Moment
Discovery Year	2010
Parity	-

⁸¹Cu Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	81%
2n (2-neutron emission)	%

⁸²Cu

Abundance	Radioactive ☢️
Relative Atomic Mass	81.972378 ± 0.000429 Da
Mass Number	82
G-Factor
Half Life	34 ± 7 ms
Spin
Quadrupole Moment
Discovery Year	2010
Parity

⁸²Cu Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	%
2n (2-neutron emission)	%

⁸³Cu

Abundance	Radioactive ☢️
Relative Atomic Mass	82.97811 ± 0.000537 Da
Mass Number	83
G-Factor
Half Life
Spin	5/2
Quadrupole Moment
Discovery Year	2017
Parity	-

⁸³Cu Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	%
β⁻ n (β⁻-delayed neutron emission)	%
2n (2-neutron emission)	%

⁸⁴Cu

Abundance
Relative Atomic Mass	83.985271 ± 0.000537 Da
Mass Number	84
G-Factor
Half Life
Spin
Quadrupole Moment
Discovery Year
Parity

⁸⁴Cu Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	%
β⁻ n (β⁻-delayed neutron emission)	%

History

Copper occurs naturally as native copper and was known to some of the oldest civilizations on record. Earliest estimates of the discovery of copper suggest around 9000 BC in the Middle East. It was one of the most important materials to humans throughout the copper and bronze ages. From the Latin word cuprum, from the island of Cyprus

Discoverers	Known to the ancients.
Discovery Location
Discovery Year
Etymology (Name Origin)	Symbol from Latin: cuprum (island of Cyprus famed for its copper mines).
Pronunciation	KOP-er (English)

Cooking acidic food in copper pots can cause toxicity

Pure copper is orange-red and acquires a reddish tarnish when exposed to air

Uses

Copper is often used for electrical wiring applications and for household plumbing applications. Copper sulfate is used as a fungicide and as an algicide in rivers, lakes and ponds. It is also used in cookware and cooking utensils. Commercially important alloys such as brass and bronze are made with copper and other metals. Most often used as an electrical conductor. Also used in the manufacture of water pipes. Its alloys are used in jewelry and for coins.

Sources

Pure copper occurs rarely in nature. Usually found in sulfides as in chalcopyrite (CuFeS2), coveline (CuS), chalcosine (Cu2S) or oxides like cuprite (Cu2O).

Abundance
Abundance in Earth's crust	60 mg/kg
Abundance in Oceans	0.00025 mg/L
Abundance in Human Body	0.0001 %
Abundance in Meteor	0.011 %
Abundance in Sun	0.00007 %
Abundance in Universe	0.000006 %

Nuclear Screening Constants

1	s	0.6614
2	p	3.903
2	s	7.9802
3	d	15.7994
3	p	14.2694
3	s	13.4057
4	s	23.1576

Copper on ChemicalAid

ABC News topic ID	copper
AGROVOC ID	c_1868
Art & Architecture Thesaurus ID	300011020
Australian Educational Vocabulary ID	scot/3512
BNCF Thesaurus ID	2735
Biblioteca Nacional de España ID	XX530125
Bibliothèque nationale de France ID	119470591
Brockhaus Enzyklopädie online ID	kupfer-20
CAS Registry Number	7440-50-8
Canadian Encyclopedia article ID	copper
ChEBI ID	30052
ChEMBL ID	CHEMBL55643
ChemSpider ID	22414
CosIng number	32826
DSSTOX compound identifier	DTXCID503985
DSSTox substance ID	DTXSID2023985
Den Store Danske ID	kobber
DrugBank ID	09130
ECHA Substance Infocard ID	100.028.326
Encyclopedia of China ID (Third Edition)	190458
Encyclopædia Britannica Online ID	science/copper
Encyclopædia Universalis ID	cuivre
EuroVoc ID	316
Freebase ID	/m/025rsfk
French Vikidia ID	Cuivre
GND ID	4033734-0
Gran Enciclopèdia Catalana ID	0226407
Great Russian Encyclopedia Online ID	2198522
Grove Art Online ID	T019343
HSDB ID	1622
ICSC ID	0240
IEDB Epitope ID	174839
InChI	InChI=1S/Cu
InChIKey	RYGMFSIKBFXOCR-UHFFFAOYSA-N
Italian Vikidia ID	Rame
KBpedia ID	Copper
KEGG ID	C00070
Klexikon article ID	Kupfer
Le Monde diplomatique subject ID	sujet/cuivre
Library of Congress authority ID	sh85032278
LiverTox ID	Copper
MeSH descriptor ID	D003300
NALT ID	28946
NDF-RT ID	N0000146034
NKCR AUT ID	ph123121
Namuwiki ID	구리
National Diet Library ID	00561504
National Library of Israel J9U ID	987007562861205171
OmegaWiki Defined Meaning	761
OpenAlex ID	C2991729501
OpenAlex ID	C544778455
Open Food Facts ingredient ID	copper
PACTOLS thesaurus ID	pcrt16pnvNar4g
PM20 ware ID	143156
PSH ID	5785
PubChem CID	23978
Quora topic ID	Copper-element
RKD thesaurus ID	43430
RxNorm ID	2837
Römpp online ID	RD-11-02420
STW Thesaurus for Economics ID	14299-5
Spanish Cultural Heritage thesauri ID	materias/1181267
Spanish Vikidia ID	Cobre
Store medisinske leksikon ID	kobber
Store norske leksikon ID	kobber
Treccani ID	rame
U.S. National Archives Identifier	10638044
UK Archival Thesaurus ID	f2/mt225/4347/1213
UK Parliament thesaurus ID	9416
UMLS CUI	C0009968
UNESCO Thesaurus ID	concept5524
UNII	789U1901C5
WikiSkripta ID	12119
Wolfram Language entity code	Entity["Mineral", "Copper"]
WordNet 3.1 Synset ID	14659900-n
YSO ID	19074
ZVG number	8240
Zhihu topic ID	19659734

Copper (Cu)

Properties

Isotopes of Copper

52Cu

52Cu Decay Modes

53Cu

53Cu Decay Modes

54Cu

54Cu Decay Modes

55Cu

55Cu Decay Modes

56Cu

56Cu Decay Modes

57Cu

57Cu Decay Modes

58Cu

58Cu Decay Modes

59Cu

59Cu Decay Modes

60Cu

60Cu Decay Modes

61Cu

61Cu Decay Modes

62Cu

62Cu Decay Modes

63Cu

64Cu

64Cu Decay Modes

65Cu

66Cu

66Cu Decay Modes

67Cu

67Cu Decay Modes

68Cu

68Cu Decay Modes

69Cu

69Cu Decay Modes

70Cu

70Cu Decay Modes

71Cu

71Cu Decay Modes

72Cu

72Cu Decay Modes

73Cu

73Cu Decay Modes

74Cu

74Cu Decay Modes

75Cu

75Cu Decay Modes

76Cu

76Cu Decay Modes

77Cu

77Cu Decay Modes

78Cu

78Cu Decay Modes

79Cu

79Cu Decay Modes

80Cu

80Cu Decay Modes

81Cu

81Cu Decay Modes

82Cu

82Cu Decay Modes

83Cu

83Cu Decay Modes

84Cu

84Cu Decay Modes