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Template:Infobox palladium

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Palladium, 46Pd
File:Palladium (46 Pd).jpg
Palladium
Pronunciation/pəˈleɪdiəm/ ​(pə-LAY-dee-əm)
Appearancesilvery white
Standard atomic weight Ar°(Pd)
Palladium in the periodic table
Hydrogen Helium
Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon
Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon
Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton
Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon
Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon
Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Nihonium Flerovium Moscovium Livermorium Tennessine Oganesson
Ni
↑
Pd
↓
Pt
rhodium ← palladium → silver
Atomic number (Z)46
Groupgroup 10
Periodperiod 5
Block  d-block
Electron configuration[Kr] 4d10
Electrons per shell2, 8, 18, 18
Physical properties
Phase at STPsolid
Melting point1828.05 K ​(1554.9 °C, ​2830.82 °F)
Boiling point3236 K ​(2963 °C, ​5365 °F)
Density (at 20° C)12.007 g/cm3[3]
when liquid (at m.p.)10.38 g/cm3
Heat of fusion16.74 kJ/mol
Heat of vaporization358 kJ/mol
Molar heat capacity25.98 J/(mol·K)
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 1721 1897 2117 2395 2753 3234
Atomic properties
Oxidation statescommon: 0, +2, +4
+1,[4] +3,[5] +5[6]
ElectronegativityPauling scale: 2.20
Ionization energies
  • 1st: 804.4 kJ/mol
  • 2nd: 1870 kJ/mol
  • 3rd: 3177 kJ/mol
Atomic radiusempirical: 137 pm
Covalent radius139±6 pm
Van der Waals radius163 pm
Color lines in a spectral range
Spectral lines of palladium
Other properties
Natural occurrenceprimordial
Crystal structure ​face-centered cubic (fcc) (cF4)
Lattice constanta = 389.02 pm (at 20 °C)[3]
Thermal expansion11.77×10−6/K (at 20 °C)[3]
Thermal conductivity71.8 W/(m⋅K)
Electrical resistivity105.4 nΩ⋅m (at 20 °C)
Magnetic orderingparamagnetic[7]
Molar magnetic susceptibility+567.4×10−6 cm3/mol (288 K)[8]
Young's modulus121 GPa
Shear modulus44 GPa
Bulk modulus180 GPa
Speed of sound thin rod3070 m/s (at 20 °C)
Poisson ratio0.39
Mohs hardness4.75
Vickers hardness400–600 MPa
Brinell hardness320–610 MPa
CAS Number7440-05-3
History
Namingafter asteroid Pallas, itself named after Pallas Athena
Discovery and first isolationWilliam Hyde Wollaston (1802)
Isotopes of palladium
Main isotopes[9] Decay
abun­dance half-life (t1/2) mode pro­duct
100Pd synth 3.63 d ε 100Rh
γ –
102Pd 1.02% stable
103Pd synth 16.991 d ε 103Rh
104Pd 11.1% stable
105Pd 22.3% stable
106Pd 27.3% stable
107Pd trace 6.5×106 y β− 107Ag
108Pd 26.5% stable
110Pd 11.7% stable
File:Symbol category class.svg Category: Palladium
| references
child table, as reused in {IB-Pd}
Main isotopes of palladium
Main isotopes[9] Decay
abun­dance half-life (t1/2) mode pro­duct
100Pd synth 3.63 d ε 100Rh
γ –
102Pd 1.02% stable
103Pd synth 16.991 d ε 103Rh
104Pd 11.1% stable
105Pd 22.3% stable
106Pd 27.3% stable
107Pd trace 6.5×106 y β− 107Ag
108Pd 26.5% stable
110Pd 11.7% stable
Data sets read by {{Infobox element}}
Name and identifiers
Symbol etymology (11 non-trivial)
Top image (caption, alt) caption:

alt:
Pronunciation
Allotropes (overview)
Group (overview)
Period (overview)
Block (overview)
Natural occurrence
Phase at STP
Oxidation states
Spectral lines image
Electron configuration (cmt, ref)
Isotopes
Standard atomic weight
  most stable isotope
File:Notification-icon-Wikidata-logo.svg Wikidata
Wikidata *
* Not used in {{Infobox element}} (2023-01-01)
See also {{Index of data sets}} · Cat:data sets (0) · (this table:
)

References

These references will appear in the article, but this list appears only on this page.
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  2. ↑ Lua error in Module:Citation/CS1/Configuration at line 2088: attempt to index field '?' (a nil value).
  3. ↑ Jump up to: 3.0 3.1 3.2 Lua error in Module:Citation/CS1/Configuration at line 2088: attempt to index field '?' (a nil value).
  4. ↑ Pd(I) is known in [Pd2]2+ compounds; see Lua error in Module:Citation/CS1/Configuration at line 2088: attempt to index field '?' (a nil value).
  5. ↑ Pd(III) has been observed; see Lua error in Module:Citation/CS1/Configuration at line 2088: attempt to index field '?' (a nil value).
  6. ↑ Palladium(V) has been identified in complexes with organosilicon compounds containing pentacoordinate palladium; see Lua error in Module:Citation/CS1/Configuration at line 2088: attempt to index field '?' (a nil value).
  7. ↑ Lua error in Module:Citation/CS1/Configuration at line 2088: attempt to index field '?' (a nil value).
  8. ↑ Lua error in Module:Citation/CS1/Configuration at line 2088: attempt to index field '?' (a nil value).
  9. ↑ Jump up to: 9.0 9.1 Lua error in Module:Citation/CS1/Configuration at line 2088: attempt to index field '?' (a nil value).

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