46
Pd
Palladium
106.421
Basic Information
Bohr Model
Descriptive Numbers
Mass
Periodic Position
Classification
Abundance
Color
Atomic Radius
Temperature
Density
Heat
Speed of Sound
Electrical Resistance
Magnetic Properties
Elasticity
Hardness
Etymology
Discovery & Isolation
Production & Use
Radioactivity
Electron Affinity
Dipole Polarity
Lattice
Electron & Quantum
List of Compounds
Basic Information
Bohr Model
Static
Interactive
Descriptive Numbers
CAS Number
7440-05-03
CID Number
CID23938
DOT Number
3200
RTECS Number
RTECSRT3480500
Mendeleev Number
68
Pettifor Number
69
Space Group Number
225
Glawe Number
65
Mass
Atomic Mass
106.421 Da
Uncertainty
0.01
Periodic Position
X Position
10
Y Position
5
Period
5
Group
10
Classification
Block
d
Category
Transition Metal
Geochemical
I am metal
Goldschmidt
Siderophile
Electrical Type
Conductive
Abundance
Sun
0.0000014 mole ratio to silicon
Earth Crust
1.5e-8 g
Solar System
0.0000014 mole ratio to silicon
Meteorites
0.000065 %
Color
Jmol
#006985
Molcas Gv
#006985
CPK
#FF1493
Atomic Radius
Empirical
140
Calculated
169
Van Der Waals
163
Batsanov
205
Rahm
215
Uff
289.9
Mm3
237
Alvarez
215
Covalent (Single Bound)
131
Covalent (Triple Bound)
112
Covalent (Cordero)
139
Covalent (Pyykko)
120
Covalent (Pyykko Double)
117
Covalent (Pyykko Triple)
112
Mendeleev
128
C12
137
Metallic
137
Temperature
Melting/Freeze (USE)
1828.05 °K
Melting/Freeze (WEL)
1828.05 °K
Melting/Freeze (CRC)
1827.9 °K
Melting/Freeze (LNG)
1828 °K
Boiling/Density (USE)
3236 °K
Boiling/Density (WEL)
3236 °K
Boiling/Density (CRC)
3236 °K
Boiling/Density (LNG)
3440 °K
Boiling/Density (Zhang)
3233 °K
Density
STP
12.023 kg/cm³
Solid (WEL)
12023 kg/cm³
Solid (CRC)
12000 kg/cm³
Solid (LNG)
12023 kg/cm³
Liquid (CR2)
10380 kg/cm³
Heat
Molar Volume
8.56 cm³/mol
Atomic Volume
8.9 cm³
Heat Of Fusion USE
17.24 kJ/mol
Heat Of Fusion CRC
16.74 kJ/mol
Heat Of Fusion LNG
16.74 kJ/mol
Heat Of Fusion WEL
16.7 kJ/mol
Evaporation USE
372.4 kJ/mol
Evaporation LNG
362 kJ/mol
Evaporation WEL
380 kJ/mol
Evaporation Zhang
358 kJ/mol
Molar Heat
25.98 J/molK
Heat Capacity USE
0.244 J/gK
Heat Capacity CRC
25.98 J/gK
Heat Capacity LNG
25.94 J/gK
Heat Capacity WEL
26 J/gK
Thermal Conductivity
71.8 W/m*K
Thermal Expansion
0.0000118 1/K
Adiabatic Index
N/A
Speed of Sound
Extensional
3070 m/s
Electrical Resistance
80k
17.5 nΩm
273k
97.8 nΩm
293k
105.4 nΩm
298k
107.3 nΩm
300k
108 nΩm
500k
179.4 nΩm
Magnetic Properties
Order
paramanyetic
Susceptibility
6.6e-8 m3/kg
Elasticity
Shear Modulus
44 GPa
Bulk Modulus
180 GPa
Poisson Ratio
0.39 ν
Youngs Modulus
121 GPa
Hardness
Mohs
4.75
Brinell
320–610
Vickers
400–600
Etymology
Description
It is a soft, white and ductile transition element. It is found in some copper and nickel ores. It does not react with oxygen at normal temperatures. It is soluble only in hydrochloric acid. In 1803 W.H. It was discovered by Wollaston.
Language Of Origin
Greek via Latin
Origin Of Word
From the Pallas meteorite, which was newly discovered at the time and thought to be a planet.
Meaning
little teenage girl
Symbol Origin
astrological, mythological
Etymological Description
It comes from the name of the meteorite Pallas, which was discovered two years ago. The name of the meteorite in question comes from Pallas Athena, the goddess of wisdom and victory. The word palladium comes from the Greek Palládion and is the grammatical genderless form of Palládios, meaning "belonging to Pallas".
Discovery & Isolation
Observed/Predicted By
W. H. Wollaston
Observed/Discovery Year
1802
Discovery Location
Isolated Sample By
W. H. Wollaston
Isolated Sample Year
1802
Production & Use
Sources
It is obtained from platinum, nickel, copper and mercury ores.
Uses
It is used as an alternative to silver in dental tools and jewelry. The pure metal form is used when making precision mainsprings for analog wristwatches. It is also used as a catalyst and in surgical instruments.
Radioactivity
Half Life
Stable
Lifetime
Stable
Neutron Mass Absorption
0.0023
Neutron Cross Section
6.9
Electron Affinity
Proton Affinity
696
Electron Affinity (eV)
0.562
Electron Affinity (kJ/mol)
54.24
Electron Affinity (pauling)
2.2
Electron Affinity (allen)
9.402
Electron Affinity (ghosh)
0.1440276
Dipole Polarity
Accepted
26.14
Uncertainty
0.1
C6 GB
628
Lattice
Constant Internal Default Radius
3.89
Constant
389.07, 389.07, 389.07
Strucutre
FCC
Angles
p/2, p/2, p/2
Electron & Quantum
Oxidation States
0,1,2,3,4
Electron Configuration
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 4d10
Quantum Number
1S0
Electron Configuration Semantic
[kr] 4d10
Shells-0
2
Shells-1
8
Shells-2
18
Shells-3
18
Ionization Energies-0
804.4
Ionization Energies-1
1870
Ionization Energies-2
3177
List of Compounds
1-10 of 86 compounds
| Formula | Names |
|---|---|
| Pd | palladium palladium metal |
| PdBr2 | palladium(II)bromide dibromopalladium palladium bromide palladousbromide |
| Cl2Pd | palladium(II)chloride dichloropalladium |
| F2Pd | palladium(II) fluoride |
| I2Pd | palladium(II) iodide diiodopalladium palladous diiodide palladous iodide |
| OPd | palladium oxide ketopalladium oxopalladium palladium(II) oxide palladium monoxide |
| PdS | palladium(II) sulfide palladium monosulfide palladous sulfide sulfanylidenepalladium thioxopalladium |
| Pb(BF4)2 | lead(II)tetrafluoroborate lead(II) fluoroborate palladium(+2) cation ditetrafluoroborate |
| K2PdBr4 | potassium tetrabromopalladate(II) potassium; tetrabromopalladium |
| Na2PdBr4 | sodium tetrabromopalladate(II) disodium tetrabromopalladium |
