Palladi

Palladi (Pd)

chemical element with symbol Pd and atomic number 46
Atomic Number46
Atomic Weight106.42
Rhif màs106
Group10
Period5
Blockd
Proton46 p+
Niwtron60 n0
Electron46 e-
Animated Bohr model of Pd (Palladi)

Nodwedd Ffisegol

Atomic Radius
140 pm
molar volume
covalent radius
120 pm
Metallic Radius
128 pm
ionic radius
59 pm
Crystal Radius
73 pm
Van der Waals radius
210 pm
density
Atomic Radii Of The Elements: Palladi0102030405060708090100110120130140150160170180190200210pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Nodwedd Gemegol

egni
proton affinity
696 kJ/mol
electron affinity
ionization energy
8.33686 eV/particle
ionization energy of Pd (Palladi)
enthalpy of vaporization
372.4 kJ/mol
enthalpy of fusion
17.24 kJ/mol
standard enthalpy of formation
376.6 kJ/mol
Electron
plisgyn yr electron2, 8, 18, 18
Bohr model: Pd (Palladi)
valence electron10
Lewis structure: Pd (Palladi)
trefn yr electronnau[Kr] 4d10
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 4d10
Enhanced Bohr model of Pd (Palladi)
Orbital Diagram of Pd (Palladi)
Cyflwr ocsidiad0, 1, 2, 3, 4, 5
Electronegatifedd
2.2
Electrophilicity Index
1.273169376998428 eV/particle
cyflwr sylfaenol mater
cyflwr materSolid
gaseous state of matter
Boiling Point
3,236.15 K
Melting Point
1,827.95 K
critical pressure
critical temperature
triple point
appearance
lliw
Silver
appearancesilvery white
Mynegrif plygiant
nodwedd ffisegol gwrthrych
Thermal Conductivity
71.8 W/(m K)
thermal expansion
0.0000118 1/K
molar heat capacity
25.98 J/(mol K)
Specific Heat Capacity
0.246 J/(g⋅K)
heat capacity ratio
electrical properties
typeConductor
dargludedd trydanol
10 MS/m
Gwrthedd
0.0000001 m Ω
superconductivity
magnetism
typeparamagnetic
magnetic susceptibility (Mass)
0.0000000657 m³/Kg
magnetic susceptibility (Molar)
0.000000006992 m³/mol
magnetic susceptibility (Volume)
0.0007899
magnetic ordering
Curie temperature
Néel temperature
strwythur
Crystal StructureFace Centered Cubic (FCC)
lattice constant
3.89 Å
Lattice Anglesπ/2, π/2, π/2
nodwedd mecanyddol deunyddiau
hardness
4.75 MPa
bulk modulus
180 GPa
shear modulus
44 GPa
Young's modulus
121 GPa
Poisson's ratio
0.39
speed of sound
3,070 m/s
classification
CategoryTransition metals, Transition metals
CAS GroupVIIIA
IUPAC GroupVIII
Glawe Number65
Mendeleev Number68
Pettifor Number69
Geochemical Classnoble metal
Goldschmidt classificationsiderophile

other

Gas Basicity
673.4 kJ/mol
polarizability
26.14 ± 0.1 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
6.9
Neutron Mass Absorption
0.0023
quantum number1S0
space group225 (Fm_3m)

Isotopes of Palladium

Stable Isotopes4
Unstable Isotopes38
Natural Isotopes6
Isotopic Composition10627.33%10627.33%10826.46%10826.46%10522.33%10522.33%10411.14%10411.14%11011.72%11011.72%1021.02%1021.02%

90Pd

Rhif màs90
neutron number44
relative atomic mass
89.95737 ± 0.000429 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
spin0
nuclear quadrupole moment
0
dyddiad darganfod2016
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)
β+ p (β+-delayed proton emission)
2p (2-proton emission)

91Pd

Rhif màs91
neutron number45
relative atomic mass
90.950435 ± 0.000454 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
32 ± 3 ms
spin7/2
nuclear quadrupole moment
dyddiad darganfod1995
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)3.1%

92Pd

Rhif màs92
neutron number46
relative atomic mass
91.941192225 ± 0.000370402 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
1.06 ± 0.03 s
spin0
nuclear quadrupole moment
0
dyddiad darganfod1994
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)1.6%

93Pd

Rhif màs93
neutron number47
relative atomic mass
92.936680426 ± 0.000397221 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
1.17 ± 0.02 s
spin9/2
nuclear quadrupole moment
dyddiad darganfod1994
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)7.4%

94Pd

Rhif màs94
neutron number48
relative atomic mass
93.929036286 ± 0.000004602 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
9.1 ± 0.3 s
spin0
nuclear quadrupole moment
0
dyddiad darganfod1982
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)0.13%

95Pd

Rhif màs95
neutron number49
relative atomic mass
94.924888506 ± 0.000003253 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
7.4 ± 0.4 s
spin9/2
nuclear quadrupole moment
dyddiad darganfod1980
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)0.23%

96Pd

Rhif màs96
neutron number50
relative atomic mass
95.918213739 ± 0.000004502 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
122 ± 2 s
spin0
nuclear quadrupole moment
0
dyddiad darganfod1980
parity+

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

97Pd

Rhif màs97
neutron number51
relative atomic mass
96.916471985 ± 0.0000052 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
3.1 ± 0.09 m
spin5/2
nuclear quadrupole moment
dyddiad darganfod1969
parity+

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

98Pd

Rhif màs98
neutron number52
relative atomic mass
97.912698335 ± 0.00000509 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
17.7 ± 0.4 m
spin0
nuclear quadrupole moment
0
dyddiad darganfod1955
parity+

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

99Pd

Rhif màs99
neutron number53
relative atomic mass
98.911773073 ± 0.000005482 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
21.4 ± 0.2 m
spin5/2
nuclear quadrupole moment
dyddiad darganfod1955
parity

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

100Pd

Rhif màs100
neutron number54
relative atomic mass
99.908520438 ± 0.000018934 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
3.63 ± 0.09 d
spin0
nuclear quadrupole moment
0
dyddiad darganfod1948
parity+

decay modeintensity
ϵ (electron capture)100%

101Pd

Rhif màs101
neutron number55
relative atomic mass
100.908284824 ± 0.000004925 Da
g-factor
0.264 ± 0.008
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
8.47 ± 0.06 h
spin5/2
nuclear quadrupole moment
dyddiad darganfod1948
parity+

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

102Pd

Rhif màs102
neutron number56
relative atomic mass
101.905632292 ± 0.000000449 Da
g-factor
0
natural abundance
1.02 ± 0.01
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
spin0
nuclear quadrupole moment
0
dyddiad darganfod1935
parity+

decay modeintensity
+ (double β+ decay)

103Pd

Rhif màs103
neutron number57
relative atomic mass
102.906111074 ± 0.000000942 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
16.991 ± 0.019 d
spin5/2
nuclear quadrupole moment
dyddiad darganfod1950
parity+

decay modeintensity
ϵ (electron capture)100%

104Pd

Rhif màs104
neutron number58
relative atomic mass
103.904030393 ± 0.000001434 Da
g-factor
0
natural abundance
11.14 ± 0.08
Dadfeilio ymbelydrolstable isotope
Hanner oesNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
dyddiad darganfod1935
parity+

105Pd

Rhif màs105
neutron number59
relative atomic mass
104.905079479 ± 0.000001222 Da
g-factor
natural abundance
22.33 ± 0.08
Dadfeilio ymbelydrolstable isotope
Hanner oesNot Radioactive ☢️
spin5/2
nuclear quadrupole moment
0.66 ± 0.011
dyddiad darganfod1935
parity+

106Pd

Rhif màs106
neutron number60
relative atomic mass
105.903480287 ± 0.000001186 Da
g-factor
0
natural abundance
27.33 ± 0.03
Dadfeilio ymbelydrolstable isotope
Hanner oesNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
dyddiad darganfod1935
parity+

107Pd

Rhif màs107
neutron number61
relative atomic mass
106.905128058 ± 0.000001289 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
6.5 ± 0.3 My
spin5/2
nuclear quadrupole moment
dyddiad darganfod1958
parity+

decay modeintensity
β (β decay)100%

108Pd

Rhif màs108
neutron number62
relative atomic mass
107.903891806 ± 0.000001189 Da
g-factor
0
natural abundance
26.46 ± 0.09
Dadfeilio ymbelydrolstable isotope
Hanner oesNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
dyddiad darganfod1935
parity+

109Pd

Rhif màs109
neutron number63
relative atomic mass
108.905950576 ± 0.000001195 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
13.59 ± 0.12 h
spin5/2
nuclear quadrupole moment
dyddiad darganfod1937
parity+

decay modeintensity
β (β decay)100%

110Pd

Rhif màs110
neutron number64
relative atomic mass
109.905172878 ± 0.000000657 Da
g-factor
0
natural abundance
11.72 ± 0.09
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
spin0
nuclear quadrupole moment
0
dyddiad darganfod1935
parity+

decay modeintensity
(double β decay)

111Pd

Rhif màs111
neutron number65
relative atomic mass
110.907690358 ± 0.000000785 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
23.56 ± 0.09 m
spin5/2
nuclear quadrupole moment
dyddiad darganfod1937
parity+

decay modeintensity
β (β decay)100%

112Pd

Rhif màs112
neutron number66
relative atomic mass
111.907330557 ± 0.000007027 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
21.04 ± 0.17 h
spin0
nuclear quadrupole moment
0
dyddiad darganfod1951
parity+

decay modeintensity
β (β decay)100%

113Pd

Rhif màs113
neutron number67
relative atomic mass
112.910261912 ± 0.000007458 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
93 ± 5 s
spin5/2
nuclear quadrupole moment
dyddiad darganfod1954
parity+

decay modeintensity
β (β decay)100%

114Pd

Rhif màs114
neutron number68
relative atomic mass
113.91036943 ± 0.000007459 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
2.42 ± 0.06 m
spin0
nuclear quadrupole moment
0
dyddiad darganfod1958
parity+

decay modeintensity
β (β decay)100%

115Pd

Rhif màs115
neutron number69
relative atomic mass
114.913659333 ± 0.000014543 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
25 ± 2 s
spin1/2
nuclear quadrupole moment
0
dyddiad darganfod1958
parity

decay modeintensity
β (β decay)100%

116Pd

Rhif màs116
neutron number70
relative atomic mass
115.914297872 ± 0.000007659 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
11.8 ± 0.4 s
spin0
nuclear quadrupole moment
0
dyddiad darganfod1970
parity+

decay modeintensity
β (β decay)100%

117Pd

Rhif màs117
neutron number71
relative atomic mass
116.917955584 ± 0.000007788 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
4.3 ± 0.3 s
spin3/2
nuclear quadrupole moment
dyddiad darganfod1968
parity+

decay modeintensity
β (β decay)100%

118Pd

Rhif màs118
neutron number72
relative atomic mass
117.919067273 ± 0.000002677 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
1.9 ± 0.1 s
spin0
nuclear quadrupole moment
0
dyddiad darganfod1969
parity+

decay modeintensity
β (β decay)100%

119Pd

Rhif màs119
neutron number73
relative atomic mass
118.923341138 ± 0.000008854 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
920 ± 80 ms
spin3/2
nuclear quadrupole moment
dyddiad darganfod1991
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)

120Pd

Rhif màs120
neutron number74
relative atomic mass
119.924551745 ± 0.000002464 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
492 ± 33 ms
spin0
nuclear quadrupole moment
0
dyddiad darganfod1993
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)0.7%

121Pd

Rhif màs121
neutron number75
relative atomic mass
120.928950342 ± 0.0000036 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
290 ± 1 ms
spin3/2
nuclear quadrupole moment
dyddiad darganfod1994
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)0.8%

122Pd

Rhif màs122
neutron number76
relative atomic mass
121.930631693 ± 0.000021 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
193 ± 5 ms
spin0
nuclear quadrupole moment
0
dyddiad darganfod1994
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)2.5%

123Pd

Rhif màs123
neutron number77
relative atomic mass
122.935126 ± 0.0008475 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
108 ± 1 ms
spin3/2
nuclear quadrupole moment
dyddiad darganfod1994
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)10%

124Pd

Rhif màs124
neutron number78
relative atomic mass
123.937305 ± 0.000322 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
88 ± 15 ms
spin0
nuclear quadrupole moment
0
dyddiad darganfod1997
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)17%

125Pd

Rhif màs125
neutron number79
relative atomic mass
124.942072 ± 0.000429 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
60 ± 6 ms
spin3/2
nuclear quadrupole moment
dyddiad darganfod2008
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)12%

126Pd

Rhif màs126
neutron number80
relative atomic mass
125.944401 ± 0.000429 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
48.6 ± 0.8 ms
spin0
nuclear quadrupole moment
0
dyddiad darganfod2008
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)22%

127Pd

Rhif màs127
neutron number81
relative atomic mass
126.949307 ± 0.000537 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
38 ± 2 ms
spin11/2
nuclear quadrupole moment
dyddiad darganfod2010
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)19%
2n (2-neutron emission)

128Pd

Rhif màs128
neutron number82
relative atomic mass
127.952345 ± 0.000537 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
35 ± 3 ms
spin0
nuclear quadrupole moment
0
dyddiad darganfod2010
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)

129Pd

Rhif màs129
neutron number83
relative atomic mass
128.959334 ± 0.000644 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
31 ± 7 ms
spin7/2
nuclear quadrupole moment
dyddiad darganfod2015
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)
2n (2-neutron emission)

130Pd

Rhif màs130
neutron number84
relative atomic mass
129.964863 ± 0.000322 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
spin0
nuclear quadrupole moment
0
dyddiad darganfod2018
parity+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
2n (2-neutron emission)

131Pd

Rhif màs131
neutron number85
relative atomic mass
130.972367 ± 0.000322 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
spin7/2
nuclear quadrupole moment
dyddiad darganfod2018
parity-

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
2n (2-neutron emission)
Palladium 1-noReflection

hanes

darganfyddwr neu ddyfeisiwrWilliam Wollaston
man darganfodEngland
dyddiad darganfod1803
geirdarddiadNamed after the asteroid, Pallas, discovered in 1803.
ynganiadpeh-LAY-di-em (Saesneg)

source

Abundance
Abundance in Earth's crust
0.015 mg/kg
natural abundance (cefnfor)
natural abundance (corff dynol)
natural abundance (Awyrfaen)
0.000066 %
natural abundance (Haul)
0.0000003 %
Abundance in Universe
0.0000002 %

Nuclear Screening Constants

1s0.9411
2p4.07
2s12.1172
3d14.5489
3p16.9804
3s16.7788
4d32.3824
4p28.2768
4s27.014