Òr (Au)

chemical element with symbol Au and atomic number 79

Atomic Number	79
Atomic Weight	196.966569
Núicléónuimhir	197

Group	11
Period	6
Block	d

prótón	79 p⁺
neodrón	118 n⁰
leictreon	79 e^-

Physical Property

Ga Adamhach	135 pm 226 pm
molar volume	10.2 cm³/mol
covalent radius	124 pm 121 pm 123 pm 136 pm
Metallic Radius	134 pm 144 pm
ionic radius	137 pm 68 pm 85 pm 57 pm
Crystal Radius	151 pm 82 pm 99 pm 71 pm
Van der Waals radius	210 pm 214 pm 243 pm 329.3 pm
dlús	19.3 g/cm³ 17,310 kg/m³

Chemical Property

fuinneamh

proton affinity
electron affinity	2.30863 eV/particle
ionization energy	9.225553 eV/particle 20.203 eV/particle 30 eV/particle 45 eV/particle 60 eV/particle 74 eV/particle 94 eV/particle 112 eV/particle 130.1 eV/particle 149 eV/particle 168.2 eV/particle 200 eV/particle 275 eV/particle 299 eV/particle 324 eV/particle 365 eV/particle 392 eV/particle 433 eV/particle 487 eV/particle 520 eV/particle 550 eV/particle 600 eV/particle 650 eV/particle 710 eV/particle 760 eV/particle 820 eV/particle 870 eV/particle 930 eV/particle 990 eV/particle 1,040 eV/particle 1,100 eV/particle 1,150 eV/particle 1,210 eV/particle 1,475 eV/particle 1,527 eV/particle 1,584 eV/particle 1,644 eV/particle 1,702 eV/particle 1,758 eV/particle 1,845 eV/particle 1,904 eV/particle 1,967 eV/particle 2,026 eV/particle 2,261 eV/particle 2,320 eV/particle 2,383 eV/particle 2,443 eV/particle 2,640 eV/particle 2,708 eV/particle 2,870 eV/particle 2,941 eV/particle 4,888 eV/particle 5,013 eV/particle 5,156 eV/particle 5,307 eV/particle 5,452 eV/particle 5,594 eV/particle 5,846 eV/particle 5,994 eV/particle 6,156 eV/particle 6,305 eV/particle 6,724 eV/particle 6,854 eV/particle 6,997 eV/particle 7,130 eV/particle 7,760 eV/particle 7,910 eV/particle 8,210 eV/particle 8,360 eV/particle 18,040 eV/particle 18,400 eV/particle 18,790 eV/particle 19,150 eV/particle 21,470 eV/particle 21,920 eV/particle 22,500 eV/particle 22,868.12 eV/particle 91,515.82 eV/particle 93,254.3 eV/particle

enthalpy of vaporization	340 kJ/mol
enthalpy of fusion	12.68 kJ/mol
eantalpacht chaighdeánach an fhoirmithe	368.2 kJ/mol
leictreon

electron shell	2, 8, 18, 32, 18, 1

Fiúsleictreon	1 ⓘ

cumraíocht leictreon	[Xe] 4f¹⁴ 5d¹⁰ 6s¹ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 4f¹⁴ 5d¹⁰ 6s¹

Staid ocsaídiúcháine	-3, -2, -1, 0, 1, 2, 3, 5
Leictridhiúltacht	11.33 eV/particle 0.26137 2.4
Electrophilicity Index	2.404200854149471 eV/particle
fundamental state of matter

phase of matter	Solid
gaseous state of matter
Boiling Point	3,109.15 K
Melting Point	1,337.33 K
critical pressure
critical temperature
triple point
appearance
dath	Gold #daa520 #ffd123 #ffd123
appearance	metallic yellow
Comhéifeacht athraonta
thermodynamic material property
Thermal Conductivity	318 W/(m K)
Forbairt theirmeach	0.0000142 1/K
molar heat capacity	25.418 J/(mol K)
Specific Heat Capacity	0.129 J/(g⋅K)
Cóimheas saintoilleadh teasa
electrical properties
type	Conductor
electrical conductivity	45 MS/m
Friotachas	0.000000022 Ω*m
Forsheoltacht
Maighnéadas
type	diamagnetic
So-ghabhálacht mhaighnéadach (Mass)	-0.00000000178 m³/Kg
So-ghabhálacht mhaighnéadach (Molar)	-0.000000000351 m³/mol
So-ghabhálacht mhaighnéadach (Volume)	-0.0000344
magnetic ordering
Teocht Curie
Néel temperature
struchtúr
Crystal Structure	Face Centered Cubic (FCC)
lattice constant	4.08 Å
Lattice Angles	π/2, π/2, π/2
airíonna meicniúla
Cruas	25 MPa 2.5 MPa 216 MPa
Modal toirte	220 GPa
modal fiartha	27 GPa
modal Young	78 GPa
Cóimheas Poisson	0.44
luas forleata fuaime	1,740 m/s
aicmiúchán
Category	Transition metals, Transition metals
CAS Group	IB
IUPAC Group	IB
Glawe Number	66
Mendeleev Number	73
Pettifor Number	70
Geochemical Class	noble metal
Goldschmidt classification	siderophile

eile

Gas Basicity
polarizability	36 ± 3 a₀
C6 Dispersion Coefficient	427 a₀
allotrope
Crosghearradh	98.7
Neutron Mass Absorption	0.017
Uimhir chandamach	2S1/2
space group	225 (Fm_3m)

Isotopes of Gold

Stable Isotopes	1
Unstable Isotopes	42
Natural Isotopes	1

¹⁶⁸Au

Núicléónuimhir	168
neutron number	89
Mais Adamhach Choibhneasta	168.002716 ± 0.000429 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré
Guairne
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh
Paireacht

decay mode	intensity
p (proton emission)

¹⁶⁹Au

Núicléónuimhir	169
neutron number	90
Mais Adamhach Choibhneasta	168.99808 ± 0.00032 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré
Guairne	1/2
nuclear quadrupole moment	0
dáta fionnachtana nó tionscnaimh
Paireacht	+

decay mode	intensity
p (proton emission)
α (α emission)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

¹⁷⁰Au

Núicléónuimhir	170
neutron number	91
Mais Adamhach Choibhneasta	169.996024 ± 0.000216 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	290 ± 50 us
Guairne	2
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh	2002
Paireacht

decay mode	intensity
p (proton emission)	89%
α (α emission)	11%

¹⁷¹Au

Núicléónuimhir	171
neutron number	92
Mais Adamhach Choibhneasta	170.991881533 ± 0.000022236 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	22.3 ± 2.4 us
Guairne	1/2
nuclear quadrupole moment	0
dáta fionnachtana nó tionscnaimh	1997
Paireacht	+

decay mode	intensity
p (proton emission)	100%
α (α emission)

¹⁷²Au

Núicléónuimhir	172
neutron number	93
Mais Adamhach Choibhneasta	171.989996704 ± 0.000060287 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	28 ± 4 ms
Guairne	2
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh	1993
Paireacht

decay mode	intensity
α (α emission)	100%
p (proton emission)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

¹⁷³Au

Núicléónuimhir	173
neutron number	94
Mais Adamhach Choibhneasta	172.986224263 ± 0.000024458 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	25.5 ± 0.8 ms
Guairne	1/2
nuclear quadrupole moment	0
dáta fionnachtana nó tionscnaimh	1983
Paireacht	+

decay mode	intensity
α (α emission)	86%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

¹⁷⁴Au

Núicléónuimhir	174
neutron number	95
Mais Adamhach Choibhneasta	173.984908 ± 0.000109 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	139 ± 3 ms
Guairne	3
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh	1983
Paireacht	-

decay mode	intensity
α (α emission)	90%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

¹⁷⁵Au

Núicléónuimhir	175
neutron number	96
Mais Adamhach Choibhneasta	174.981316375 ± 0.000041399 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	200 ± 3 ms
Guairne	1/2
nuclear quadrupole moment	0
dáta fionnachtana nó tionscnaimh	1975
Paireacht	+

decay mode	intensity
α (α emission)	88%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

¹⁷⁶Au

Núicléónuimhir	176
neutron number	97
Mais Adamhach Choibhneasta	175.980116925 ± 0.000035625 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	1.05 ± 0.01 s
Guairne	3
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh	1975
Paireacht	-

decay mode	intensity
α (α emission)	75%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

¹⁷⁷Au

Núicléónuimhir	177
neutron number	98
Mais Adamhach Choibhneasta	176.976869701 ± 0.0000107 Da
G-fhachtóir	2.3 ± 0.1
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	1.501 ± 0.02 s
Guairne	1/2
nuclear quadrupole moment	0
dáta fionnachtana nó tionscnaimh	1968
Paireacht	+

decay mode	intensity
α (α emission)	40%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	60%

¹⁷⁸Au

Núicléónuimhir	178
neutron number	99
Mais Adamhach Choibhneasta	177.976056714 ± 0.000011 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	3.4 ± 0.5 s
Guairne	2
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh	1968
Paireacht	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	84%
α (α emission)	16%

¹⁷⁹Au

Núicléónuimhir	179
neutron number	100
Mais Adamhach Choibhneasta	178.973173666 ± 0.000012555 Da
G-fhachtóir	2.02 ± 0.1
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	7.1 ± 0.3 s
Guairne	1/2
nuclear quadrupole moment	0
dáta fionnachtana nó tionscnaimh	1968
Paireacht	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	78%
α (α emission)	22%

¹⁸⁰Au

Núicléónuimhir	180
neutron number	101
Mais Adamhach Choibhneasta	179.972489738 ± 0.000005108 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	7.9 ± 0.3 s
Guairne	1
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh	1977
Paireacht	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	99.42%
α (α emission)	0.58%

¹⁸¹Au

Núicléónuimhir	181
neutron number	102
Mais Adamhach Choibhneasta	180.970079102 ± 0.000021445 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	13.7 ± 1.4 s
Guairne	5/2
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh	1968
Paireacht	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	97.3%
α (α emission)	2.7%

¹⁸²Au

Núicléónuimhir	182
neutron number	103
Mais Adamhach Choibhneasta	181.969614433 ± 0.000020143 Da
G-fhachtóir	0.65 ± 0.05
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	15.5 ± 0.4 s
Guairne	2
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh	1970
Paireacht	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
α (α emission)	0.13%

¹⁸³Au

Núicléónuimhir	183
neutron number	104
Mais Adamhach Choibhneasta	182.967588106 ± 0.000010116 Da
G-fhachtóir	0.784 ± 0.008
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	42.8 ± 1 s
Guairne	5/2
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh	1968
Paireacht	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	99.45%
α (α emission)	0.55%

¹⁸⁴Au

Núicléónuimhir	184
neutron number	105
Mais Adamhach Choibhneasta	183.967451523 ± 0.000023912 Da
G-fhachtóir	0.412 ± 0.004
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	20.6 ± 0.9 s
Guairne	5
nuclear quadrupole moment	4.7 ± 0.3
dáta fionnachtana nó tionscnaimh	1969
Paireacht	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
α (α emission)	0.013%

¹⁸⁵Au

Núicléónuimhir	185
neutron number	106
Mais Adamhach Choibhneasta	184.965798871 ± 0.0000028 Da
G-fhachtóir	0.864 ± 0.008
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	4.25 ± 0.06 m
Guairne	5/2
nuclear quadrupole moment	-1.1 ± 0.1
dáta fionnachtana nó tionscnaimh	1960
Paireacht	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	99.74%
α (α emission)	0.26%

¹⁸⁶Au

Núicléónuimhir	186
neutron number	107
Mais Adamhach Choibhneasta	185.965952703 ± 0.000022509 Da
G-fhachtóir	-0.42 ± 0.01
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	10.7 ± 0.5 m
Guairne	3
nuclear quadrupole moment	3.1 ± 0.06
dáta fionnachtana nó tionscnaimh	1960
Paireacht	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
α (α emission)	0.0008%

¹⁸⁷Au

Núicléónuimhir	187
neutron number	108
Mais Adamhach Choibhneasta	186.964542147 ± 0.000024153 Da
G-fhachtóir	1.066 ± 0.03
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	8.3 ± 0.2 m
Guairne	1/2
nuclear quadrupole moment	0
dáta fionnachtana nó tionscnaimh	1955
Paireacht	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
α (α emission)

¹⁸⁸Au

Núicléónuimhir	188
neutron number	109
Mais Adamhach Choibhneasta	187.965247966 ± 0.0000029 Da
G-fhachtóir	-0.07 ± 0.03
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	8.84 ± 0.06 m
Guairne	1
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh	1955
Paireacht	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁸⁹Au

Núicléónuimhir	189
neutron number	110
Mais Adamhach Choibhneasta	188.963948286 ± 0.000021558 Da
G-fhachtóir	0.984 ± 0.028
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	28.7 ± 0.4 m
Guairne	1/2
nuclear quadrupole moment	0
dáta fionnachtana nó tionscnaimh	1955
Paireacht	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
α (α emission)	3%

¹⁹⁰Au

Núicléónuimhir	190
neutron number	111
Mais Adamhach Choibhneasta	189.964751746 ± 0.0000037 Da
G-fhachtóir	-0.065 ± 0.007
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	42.8 ± 1 m
Guairne	1
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh	1959
Paireacht	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
α (α emission)	1%

¹⁹¹Au

Núicléónuimhir	191
neutron number	112
Mais Adamhach Choibhneasta	190.963716452 ± 0.000005288 Da
G-fhachtóir	0.090933333333333 ± 0.0006
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	3.18 ± 0.08 h
Guairne	3/2
nuclear quadrupole moment	0.72 ± 0.02
dáta fionnachtana nó tionscnaimh	1954
Paireacht	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁹²Au

Núicléónuimhir	192
neutron number	113
Mais Adamhach Choibhneasta	191.964817615 ± 0.000016991 Da
G-fhachtóir	-0.0107 ± 0.0015
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	4.94 ± 0.09 h
Guairne	1
nuclear quadrupole moment	-0.228 ± 0.008
dáta fionnachtana nó tionscnaimh	1948
Paireacht	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁹³Au

Núicléónuimhir	193
neutron number	114
Mais Adamhach Choibhneasta	192.964138442 ± 0.000009311 Da
G-fhachtóir	0.092733333333333 ± 0.00033333333333333
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	17.65 ± 0.15 h
Guairne	3/2
nuclear quadrupole moment	0.66 ± 0.02
dáta fionnachtana nó tionscnaimh	1948
Paireacht	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
α (α emission)

¹⁹⁴Au

Núicléónuimhir	194
neutron number	115
Mais Adamhach Choibhneasta	193.965419051 ± 0.000002273 Da
G-fhachtóir	0.076 ± 0.0013
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	38.02 ± 0.1 h
Guairne	1
nuclear quadrupole moment	-0.24 ± 0.009
dáta fionnachtana nó tionscnaimh	1948
Paireacht	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁹⁵Au

Núicléónuimhir	195
neutron number	116
Mais Adamhach Choibhneasta	194.965037823 ± 0.000001201 Da
G-fhachtóir	0.098733333333333 ± 0.0004
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	186.01 ± 0.06 d
Guairne	3/2
nuclear quadrupole moment	0.607 ± 0.018
dáta fionnachtana nó tionscnaimh	1948
Paireacht	+

decay mode	intensity
ϵ (electron capture)	100%

¹⁹⁶Au

Núicléónuimhir	196
neutron number	117
Mais Adamhach Choibhneasta	195.966571213 ± 0.000003179 Da
G-fhachtóir	0.29415 ± 0.00025
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	6.165 ± 0.011 d
Guairne	2
nuclear quadrupole moment	0.81 ± 0.07
dáta fionnachtana nó tionscnaimh	1937
Paireacht	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	93%
β⁻ (β⁻ decay)	7%

¹⁹⁷Au

Núicléónuimhir	197
neutron number	118
Mais Adamhach Choibhneasta	196.966570103 ± 0.000000581 Da
G-fhachtóir	0.0968 ± 0.00013333333333333
natural abundance	100
Meath radaighníomhach	stable isotope
leathré	Not Radioactive ☢️
Guairne	3/2
nuclear quadrupole moment	0.547 ± 0.016
dáta fionnachtana nó tionscnaimh	1935
Paireacht	+

¹⁹⁸Au

Núicléónuimhir	198
neutron number	119
Mais Adamhach Choibhneasta	197.968243714 ± 0.000000579 Da
G-fhachtóir	0.29555 ± 0.0004
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	2.69464 ± 0.00014 d
Guairne	2
nuclear quadrupole moment	0.64 ± 0.019
dáta fionnachtana nó tionscnaimh	1937
Paireacht	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

¹⁹⁹Au

Núicléónuimhir	199
neutron number	120
Mais Adamhach Choibhneasta	198.968766573 ± 0.000000581 Da
G-fhachtóir	0.18033333333333 ± 0.00053333333333333
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	3.139 ± 0.007 d
Guairne	3/2
nuclear quadrupole moment	0.51 ± 0.016
dáta fionnachtana nó tionscnaimh	1937
Paireacht	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

²⁰⁰Au

Núicléónuimhir	200
neutron number	121
Mais Adamhach Choibhneasta	199.970756558 ± 0.000028681 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	48.4 ± 0.3 m
Guairne	1
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh	1951
Paireacht	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

²⁰¹Au

Núicléónuimhir	201
neutron number	122
Mais Adamhach Choibhneasta	200.971657678 ± 0.000003455 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	26 ± 0.8 m
Guairne	3/2
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh	1952
Paireacht	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

²⁰²Au

Núicléónuimhir	202
neutron number	123
Mais Adamhach Choibhneasta	201.973856 ± 0.000025 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	28.4 ± 1.2 s
Guairne	1
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh	1967
Paireacht	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

²⁰³Au

Núicléónuimhir	203
neutron number	124
Mais Adamhach Choibhneasta	202.975154492 ± 0.000003309 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	60 ± 6 s
Guairne	3/2
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh	1952
Paireacht	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

²⁰⁴Au

Núicléónuimhir	204
neutron number	125
Mais Adamhach Choibhneasta	203.97811 ± 0.000215 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	38.3 ± 1.3 s
Guairne	2
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh	1972
Paireacht	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

²⁰⁵Au

Núicléónuimhir	205
neutron number	126
Mais Adamhach Choibhneasta	204.980064 ± 0.000215 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	32 ± 1.4 s
Guairne	3/2
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh	1994
Paireacht	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

²⁰⁶Au

Núicléónuimhir	206
neutron number	127
Mais Adamhach Choibhneasta	205.984766 ± 0.000322 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré	47 ± 11 s
Guairne	6
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh	2009
Paireacht	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

²⁰⁷Au

Núicléónuimhir	207
neutron number	128
Mais Adamhach Choibhneasta	206.988577 ± 0.000322 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré
Guairne	3/2
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh	2010
Paireacht	+

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)

²⁰⁸Au

Núicléónuimhir	208
neutron number	129
Mais Adamhach Choibhneasta	207.993655 ± 0.000322 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré
Guairne	6
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh	2010
Paireacht	+

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)

²⁰⁹Au

Núicléónuimhir	209
neutron number	130
Mais Adamhach Choibhneasta	208.997606 ± 0.000429 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré
Guairne	3/2
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh	2010
Paireacht	+

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)

²¹⁰Au

Núicléónuimhir	210
neutron number	131
Mais Adamhach Choibhneasta	210.002877 ± 0.000429 Da
G-fhachtóir
natural abundance
Meath radaighníomhach	☢️ radioactive element
leathré
Guairne	6
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh	2010
Paireacht	+

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)

stair

fionnachtaí nó aireagóir	Known to the ancients.
áit ar tháinig air/uirthi
dáta fionnachtana nó tionscnaimh
Sanasaíocht	Anglo-Saxon: geolo (yellow); symbol from Latin: aurum (shining dawn).
pronunciation	GOLD (Béarla)

foinse

Abundance
Abundance in Earth's crust	0.004 mg/kg
natural abundance (aigéan)	0.000004 mg/L
natural abundance (corp an duine)	0.00001 %
natural abundance (dreigeoideach)	0.000017 %
natural abundance (An Ghrian)	0.0000001 %
Abundance in Universe	0.00000006 %

Nuclear Screening Constants

1	s	1.5239
2	p	4.4868
2	s	20.6302
3	d	13.4917
3	p	22.297
3	s	23.2372
4	d	37.472
4	f	38.3504
4	p	35.4532
4	s	34.5868
5	d	58.8735
5	p	53.83
5	s	51.6725
6	s	68.062

Òr on ChemicalAid

ABC News topic ID	gold
AGROVOC ID	c_33067
ASC Leiden Thesaurus ID	294913858
Armeniapedia ID	13282
Art & Architecture Thesaurus ID	300011021
Australian Educational Vocabulary ID	scot/3525
BNCF Thesaurus ID	7196
Biblioteca Nacional de España ID	XX526003
Bibliothèque nationale de France ID	133184606
Brockhaus Enzyklopädie online ID	gold-20
CAB ID	169824
Canadian Encyclopedia article ID	gold
ChEBI ID	30050
ChemSpider ID	22421
CosIng number	32827
DSSTOX compound identifier	DTXCID0047662
DSSTox substance ID	DTXSID3064697
Den Store Danske ID	guld
DrugBank ID	14154
ECHA Substance Infocard ID	100.028.332
Encyclopædia Britannica Online ID	science/gold-chemical-element
Encyclopædia Universalis ID	or
English Vikidia ID	Gold
E number	E175
EuroVoc ID	2156
Europeana Fashion Vocabulary ID	10546
Freebase ID	/m/025rs2z
French Vikidia ID	Or
Great Russian Encyclopedia Online ID	3467786
Great Russian Encyclopedia Online ID	1995070
Grove Art Online ID	T033043
HSDB ID	2125
ID GND	4157819-3
ID Gran Enciclopèdia Catalana	0006022
ID na topaice ar Quora	Gold
InChI	InChI=1S/Au
InChIKey	PCHJSUWPFVWCPO-UHFFFAOYSA-N
Italian Vikidia ID	Oro
KBpedia ID	Gold
Klexikon article ID	Gold
Krugosvet article	nauka_i_tehnika/himiya/ZOLOTO.html
Language of Bindings ID	2414
MeSH descriptor ID	D006046
Mindat mineral ID	1720
Mindat mineral ID	36380
Mindat mineral ID	36423
Mindat mineral ID	36372
Mindat mineral ID	36399
Mindat mineral ID	36376
Mindat mineral ID	36377
Mindat mineral ID	36394
Mindat mineral ID	36390
Mindat mineral ID	36418
Mindat mineral ID	36419
Mindat mineral ID	36413
Mindat mineral ID	36417
Mindat mineral ID	36392
NALT ID	43373
NDF-RT ID	N0000022608
NDL Authority ID	00565802
NE.se ID	guld
NKCR AUT ID	ph116778
National Historical Museums of Sweden ID	term/2D747C9D-68F2-4B91-AA7E-05D4A11B0276
National Library of Israel J9U ID	987007533656105171
New York Times topic ID	subject/gold
Nomisma ID	av
OmegaWiki Defined Meaning	5912
Online PWN Encyclopedia ID	4001784
OpenAlex ID	C2910496842
Open Food Facts food additive ID	e175-gold
PACTOLS thesaurus ID	pcrtuihSl3eSnW
PSH ID	5787
Probes And Drugs ID	PD073654
PubChem CID	23985
RKD thesaurus ID	65616
RxNorm ID	1311190
Römpp online ID	RD-07-01627
STW Thesaurus for Economics ID	14298-0
Spanish Cultural Heritage thesauri ID	materias/1181264
Spanish Vikidia ID	Oro
Store norske leksikon ID	gull
Treccani ID	oro
Twitter topic ID	1306652771991478273
UK Archival Thesaurus ID	f2/mt225/4347/2556
UK Parliament thesaurus ID	10497
UMLS CUI	C0018026
UNESCO Thesaurus ID	concept11561
UNII	79Y1949PYO
USGS Thesaurus ID	1464
Wolfram Language entity code	Entity["Mineral", "Gold"]
WordNet 3.1 Synset ID	14662977-n
YSO ID	19016
ZVG number	8480
Zhihu topic ID	19962701
aitheantóir LoC	sh85055692
uimhir CAS	7440-57-5

Òr (Au)

Physical Property

Chemical Property

eile

Isotopes of Gold

168Au

169Au

170Au

171Au

172Au

173Au

174Au

175Au

176Au

177Au

178Au

179Au

180Au

181Au

182Au

183Au

184Au

185Au

186Au

187Au

188Au

189Au

190Au

191Au

192Au

193Au

194Au

195Au

196Au

197Au

198Au

199Au

200Au

201Au

202Au

203Au

204Au

205Au

206Au

207Au

208Au

209Au

210Au

stair

foinse

Nuclear Screening Constants

¹⁶⁸Au

¹⁶⁹Au

¹⁷⁰Au

¹⁷¹Au

¹⁷²Au

¹⁷³Au

¹⁷⁴Au

¹⁷⁵Au

¹⁷⁶Au

¹⁷⁷Au

¹⁷⁸Au

¹⁷⁹Au

¹⁸⁰Au

¹⁸¹Au

¹⁸²Au

¹⁸³Au

¹⁸⁴Au

¹⁸⁵Au

¹⁸⁶Au

¹⁸⁷Au

¹⁸⁸Au

¹⁸⁹Au

¹⁹⁰Au

¹⁹¹Au

¹⁹²Au

¹⁹³Au

¹⁹⁴Au

¹⁹⁵Au

¹⁹⁶Au

¹⁹⁷Au

¹⁹⁸Au

¹⁹⁹Au

²⁰⁰Au

²⁰¹Au

²⁰²Au

²⁰³Au

²⁰⁴Au

²⁰⁵Au

²⁰⁶Au

²⁰⁷Au

²⁰⁸Au

²⁰⁹Au

²¹⁰Au