Or

Or (Au)

elfen gemegol gyda'r rhif atomig o 79
Atomic Number79
Atomic Weight196.966569
Rhif màs197
Group11
Period6
Blockd
Proton79 p+
Niwtron118 n0
Electron79 e-
Animated Bohr model of Au (Or)

Nodwedd Ffisegol

Atomic Radius
135 pm
molar volume
covalent radius
124 pm
Metallic Radius
134 pm
ionic radius
137 pm
Crystal Radius
151 pm
Van der Waals radius
214 pm
density
19.3 g/cm³
Atomic Radii Of The Elements: Or0102030405060708090100110120130140150160170180190200210220pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Nodwedd Gemegol

egni
proton affinity
electron affinity
2.30863 eV/particle
ionization energy
9.225553 eV/particle
ionization energy of Au (Or)
enthalpy of vaporization
340 kJ/mol
enthalpy of fusion
12.68 kJ/mol
standard enthalpy of formation
368.2 kJ/mol
Electron
plisgyn yr electron2, 8, 18, 32, 18, 1
Bohr model: Au (Or)
valence electron1
Lewis structure: Au (Or)
trefn yr electronnau[Xe] 4f14 5d10 6s1
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f14 5d10 6s1
Enhanced Bohr model of Au (Or)
Orbital Diagram of Au (Or)
Cyflwr ocsidiad-3, -2, -1, 0, 1, 2, 3, 5
Electronegatifedd
2.4
Electrophilicity Index
2.404200854149471 eV/particle
cyflwr sylfaenol mater
cyflwr materSolid
gaseous state of matter
Boiling Point
3,109.15 K
Melting Point
1,337.33 K
critical pressure
critical temperature
triple point
appearance
lliw
Gold
appearancemetallic yellow
Mynegrif plygiant
nodwedd ffisegol gwrthrych
Thermal Conductivity
thermal expansion
0.0000142 1/K
molar heat capacity
25.418 J/(mol K)
Specific Heat Capacity
0.129 J/(g⋅K)
heat capacity ratio
electrical properties
typeConductor
dargludedd trydanol
45 MS/m
Gwrthedd
0.000000022 m Ω
superconductivity
magnetism
typediamagnetic
magnetic susceptibility (Mass)
-0.00000000178 m³/Kg
magnetic susceptibility (Molar)
-0.000000000351 m³/mol
magnetic susceptibility (Volume)
-0.0000344
magnetic ordering
Curie temperature
Néel temperature
strwythur
Crystal StructureFace Centered Cubic (FCC)
lattice constant
4.08 Å
Lattice Anglesπ/2, π/2, π/2
nodwedd mecanyddol deunyddiau
hardness
2.5 MPa
bulk modulus
220 GPa
shear modulus
27 GPa
Young's modulus
78 GPa
Poisson's ratio
0.44
speed of sound
1,740 m/s
classification
CategoryTransition metals, Transition metals
CAS GroupIB
IUPAC GroupIB
Glawe Number66
Mendeleev Number73
Pettifor Number70
Geochemical Classnoble metal
Goldschmidt classificationsiderophile

other

Gas Basicity
polarizability
36 ± 3 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
98.7
Neutron Mass Absorption
0.017
quantum number2S1/2
space group225 (Fm_3m)

Isotopes of Gold

Stable Isotopes1
Unstable Isotopes42
Natural Isotopes1

168Au

Rhif màs168
neutron number89
relative atomic mass
168.002716 ± 0.000429 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
spin
nuclear quadrupole moment
dyddiad darganfod
parity

decay modeintensity
p (proton emission)

169Au

Rhif màs169
neutron number90
relative atomic mass
168.99808 ± 0.00032 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
spin1/2
nuclear quadrupole moment
0
dyddiad darganfod
parity+

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

170Au

Rhif màs170
neutron number91
relative atomic mass
169.996024 ± 0.000216 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
290 ± 50 us
spin2
nuclear quadrupole moment
dyddiad darganfod2002
parity

decay modeintensity
p (proton emission)89%
α (α emission)11%

171Au

Rhif màs171
neutron number92
relative atomic mass
170.991881533 ± 0.000022236 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
22.3 ± 2.4 us
spin1/2
nuclear quadrupole moment
0
dyddiad darganfod1997
parity+

decay modeintensity
p (proton emission)100%
α (α emission)

172Au

Rhif màs172
neutron number93
relative atomic mass
171.989996704 ± 0.000060287 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
28 ± 4 ms
spin2
nuclear quadrupole moment
dyddiad darganfod1993
parity

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

173Au

Rhif màs173
neutron number94
relative atomic mass
172.986224263 ± 0.000024458 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
25.5 ± 0.8 ms
spin1/2
nuclear quadrupole moment
0
dyddiad darganfod1983
parity+

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

174Au

Rhif màs174
neutron number95
relative atomic mass
173.984908 ± 0.000109 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
139 ± 3 ms
spin3
nuclear quadrupole moment
dyddiad darganfod1983
parity-

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

175Au

Rhif màs175
neutron number96
relative atomic mass
174.981316375 ± 0.000041399 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
200 ± 3 ms
spin1/2
nuclear quadrupole moment
0
dyddiad darganfod1975
parity+

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

176Au

Rhif màs176
neutron number97
relative atomic mass
175.980116925 ± 0.000035625 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
1.05 ± 0.01 s
spin3
nuclear quadrupole moment
dyddiad darganfod1975
parity-

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

177Au

Rhif màs177
neutron number98
relative atomic mass
176.976869701 ± 0.0000107 Da
g-factor
2.3 ± 0.1
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
1.501 ± 0.02 s
spin1/2
nuclear quadrupole moment
0
dyddiad darganfod1968
parity+

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

178Au

Rhif màs178
neutron number99
relative atomic mass
177.976056714 ± 0.000011 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
3.4 ± 0.5 s
spin2
nuclear quadrupole moment
dyddiad darganfod1968
parity+

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

179Au

Rhif màs179
neutron number100
relative atomic mass
178.973173666 ± 0.000012555 Da
g-factor
2.02 ± 0.1
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
7.1 ± 0.3 s
spin1/2
nuclear quadrupole moment
0
dyddiad darganfod1968
parity+

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

180Au

Rhif màs180
neutron number101
relative atomic mass
179.972489738 ± 0.000005108 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
7.9 ± 0.3 s
spin1
nuclear quadrupole moment
dyddiad darganfod1977
parity+

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

181Au

Rhif màs181
neutron number102
relative atomic mass
180.970079102 ± 0.000021445 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
13.7 ± 1.4 s
spin5/2
nuclear quadrupole moment
dyddiad darganfod1968
parity-

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

182Au

Rhif màs182
neutron number103
relative atomic mass
181.969614433 ± 0.000020143 Da
g-factor
0.65 ± 0.05
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
15.5 ± 0.4 s
spin2
nuclear quadrupole moment
dyddiad darganfod1970
parity+

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

183Au

Rhif màs183
neutron number104
relative atomic mass
182.967588106 ± 0.000010116 Da
g-factor
0.784 ± 0.008
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
42.8 ± 1 s
spin5/2
nuclear quadrupole moment
dyddiad darganfod1968
parity-

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

184Au

Rhif màs184
neutron number105
relative atomic mass
183.967451523 ± 0.000023912 Da
g-factor
0.412 ± 0.004
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
20.6 ± 0.9 s
spin5
nuclear quadrupole moment
4.7 ± 0.3
dyddiad darganfod1969
parity+

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

185Au

Rhif màs185
neutron number106
relative atomic mass
184.965798871 ± 0.0000028 Da
g-factor
0.864 ± 0.008
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
4.25 ± 0.06 m
spin5/2
nuclear quadrupole moment
-1.1 ± 0.1
dyddiad darganfod1960
parity-

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

186Au

Rhif màs186
neutron number107
relative atomic mass
185.965952703 ± 0.000022509 Da
g-factor
-0.42 ± 0.01
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
10.7 ± 0.5 m
spin3
nuclear quadrupole moment
3.1 ± 0.06
dyddiad darganfod1960
parity-

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

187Au

Rhif màs187
neutron number108
relative atomic mass
186.964542147 ± 0.000024153 Da
g-factor
1.066 ± 0.03
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
8.3 ± 0.2 m
spin1/2
nuclear quadrupole moment
0
dyddiad darganfod1955
parity+

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

188Au

Rhif màs188
neutron number109
relative atomic mass
187.965247966 ± 0.0000029 Da
g-factor
-0.07 ± 0.03
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
8.84 ± 0.06 m
spin1
nuclear quadrupole moment
dyddiad darganfod1955
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

189Au

Rhif màs189
neutron number110
relative atomic mass
188.963948286 ± 0.000021558 Da
g-factor
0.984 ± 0.028
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
28.7 ± 0.4 m
spin1/2
nuclear quadrupole moment
0
dyddiad darganfod1955
parity+

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

190Au

Rhif màs190
neutron number111
relative atomic mass
189.964751746 ± 0.0000037 Da
g-factor
-0.065 ± 0.007
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
42.8 ± 1 m
spin1
nuclear quadrupole moment
dyddiad darganfod1959
parity-

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

191Au

Rhif màs191
neutron number112
relative atomic mass
190.963716452 ± 0.000005288 Da
g-factor
0.090933333333333 ± 0.0006
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
3.18 ± 0.08 h
spin3/2
nuclear quadrupole moment
0.72 ± 0.02
dyddiad darganfod1954
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

192Au

Rhif màs192
neutron number113
relative atomic mass
191.964817615 ± 0.000016991 Da
g-factor
-0.0107 ± 0.0015
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
4.94 ± 0.09 h
spin1
nuclear quadrupole moment
-0.228 ± 0.008
dyddiad darganfod1948
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

193Au

Rhif màs193
neutron number114
relative atomic mass
192.964138442 ± 0.000009311 Da
g-factor
0.092733333333333 ± 0.00033333333333333
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
17.65 ± 0.15 h
spin3/2
nuclear quadrupole moment
0.66 ± 0.02
dyddiad darganfod1948
parity+

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

194Au

Rhif màs194
neutron number115
relative atomic mass
193.965419051 ± 0.000002273 Da
g-factor
0.076 ± 0.0013
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
38.02 ± 0.1 h
spin1
nuclear quadrupole moment
-0.24 ± 0.009
dyddiad darganfod1948
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

195Au

Rhif màs195
neutron number116
relative atomic mass
194.965037823 ± 0.000001201 Da
g-factor
0.098733333333333 ± 0.0004
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
186.01 ± 0.06 d
spin3/2
nuclear quadrupole moment
0.607 ± 0.018
dyddiad darganfod1948
parity+

decay modeintensity
ϵ (electron capture)100%

196Au

Rhif màs196
neutron number117
relative atomic mass
195.966571213 ± 0.000003179 Da
g-factor
0.29415 ± 0.00025
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
6.165 ± 0.011 d
spin2
nuclear quadrupole moment
0.81 ± 0.07
dyddiad darganfod1937
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)93%
β (β decay)7%

197Au

Rhif màs197
neutron number118
relative atomic mass
196.966570103 ± 0.000000581 Da
g-factor
0.0968 ± 0.00013333333333333
natural abundance
100
Dadfeilio ymbelydrolstable isotope
Hanner oesNot Radioactive ☢️
spin3/2
nuclear quadrupole moment
0.547 ± 0.016
dyddiad darganfod1935
parity+

198Au

Rhif màs198
neutron number119
relative atomic mass
197.968243714 ± 0.000000579 Da
g-factor
0.29555 ± 0.0004
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
2.69464 ± 0.00014 d
spin2
nuclear quadrupole moment
0.64 ± 0.019
dyddiad darganfod1937
parity-

decay modeintensity
β (β decay)100%

199Au

Rhif màs199
neutron number120
relative atomic mass
198.968766573 ± 0.000000581 Da
g-factor
0.18033333333333 ± 0.00053333333333333
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
3.139 ± 0.007 d
spin3/2
nuclear quadrupole moment
0.51 ± 0.016
dyddiad darganfod1937
parity+

decay modeintensity
β (β decay)100%

200Au

Rhif màs200
neutron number121
relative atomic mass
199.970756558 ± 0.000028681 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
48.4 ± 0.3 m
spin1
nuclear quadrupole moment
dyddiad darganfod1951
parity-

decay modeintensity
β (β decay)100%

201Au

Rhif màs201
neutron number122
relative atomic mass
200.971657678 ± 0.000003455 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
26 ± 0.8 m
spin3/2
nuclear quadrupole moment
dyddiad darganfod1952
parity+

decay modeintensity
β (β decay)100%

202Au

Rhif màs202
neutron number123
relative atomic mass
201.973856 ± 0.000025 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
28.4 ± 1.2 s
spin1
nuclear quadrupole moment
dyddiad darganfod1967
parity-

decay modeintensity
β (β decay)100%

203Au

Rhif màs203
neutron number124
relative atomic mass
202.975154492 ± 0.000003309 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
60 ± 6 s
spin3/2
nuclear quadrupole moment
dyddiad darganfod1952
parity+

decay modeintensity
β (β decay)100%

204Au

Rhif màs204
neutron number125
relative atomic mass
203.97811 ± 0.000215 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
38.3 ± 1.3 s
spin2
nuclear quadrupole moment
dyddiad darganfod1972
parity-

decay modeintensity
β (β decay)100%

205Au

Rhif màs205
neutron number126
relative atomic mass
204.980064 ± 0.000215 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
32 ± 1.4 s
spin3/2
nuclear quadrupole moment
dyddiad darganfod1994
parity+

decay modeintensity
β (β decay)100%

206Au

Rhif màs206
neutron number127
relative atomic mass
205.984766 ± 0.000322 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
47 ± 11 s
spin6
nuclear quadrupole moment
dyddiad darganfod2009
parity+

decay modeintensity
β (β decay)100%

207Au

Rhif màs207
neutron number128
relative atomic mass
206.988577 ± 0.000322 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
spin3/2
nuclear quadrupole moment
dyddiad darganfod2010
parity+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)

208Au

Rhif màs208
neutron number129
relative atomic mass
207.993655 ± 0.000322 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
spin6
nuclear quadrupole moment
dyddiad darganfod2010
parity+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)

209Au

Rhif màs209
neutron number130
relative atomic mass
208.997606 ± 0.000429 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
spin3/2
nuclear quadrupole moment
dyddiad darganfod2010
parity+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)

210Au

Rhif màs210
neutron number131
relative atomic mass
210.002877 ± 0.000429 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
spin6
nuclear quadrupole moment
dyddiad darganfod2010
parity+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
Gold-crystals

hanes

darganfyddwr neu ddyfeisiwrKnown to the ancients.
man darganfod
dyddiad darganfod
geirdarddiadAnglo-Saxon: geolo (yellow); symbol from Latin: aurum (shining dawn).
ynganiadGOLD (Saesneg)

source

Abundance
Abundance in Earth's crust
0.004 mg/kg
natural abundance (cefnfor)
0.000004 mg/L
natural abundance (corff dynol)
0.00001 %
natural abundance (Awyrfaen)
0.000017 %
natural abundance (Haul)
0.0000001 %
Abundance in Universe
0.00000006 %

Nuclear Screening Constants

1s1.5239
2p4.4868
2s20.6302
3d13.4917
3p22.297
3s23.2372
4d37.472
4f38.3504
4p35.4532
4s34.5868
5d58.8735
5p53.83
5s51.6725
6s68.062