PALLADIUM, Pd (46)

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ATOMIC ARCHITECTURE

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Palladium
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PALLADIUM

Pd (46)

pəˈleɪdiəm

PHONETICS

Palladium is a rare and lustrous silvery-white metal and part of the platinum group metals and has the lowest melting point and density. Used mainly with its congener platinum into catalytic converters, which convert up to 90% of harmful gases from auto exhaust.

ELEMENT BRIEF

1803 by William Hyde Wollaston, England.

DISCOVERY

Named after the Greek 'Pallas', goddess of wisdom.

ETYMOLOGY

Palladium

ELEMENT

Pd

SYMBOL

46

ATOMIC NUMBER

7440-05-3

CAS NUMBER
element

ELEMENTAL SPECTRUM


Silver

ELEMENTAL COLOUR


-

REFRACTIVE INDEX


0.390

POISSON RATIO


8.832 cm³

MOLAR VOLUME


37.30M Pa, 368.122'4 Atm

BRINELL HARDNESS


4.75

MOHS HARDNESS


461.00M Pa, 4.549'7k Atm

VICKERS HARDNESS


3,070 m/s, Mach 8.950'4

SPEED OF SOUND


180.00G Pa, 1.776'5M Atm

BULK MODULUS


44.00G Pa, 434.246'2k Atm

SHEAR MODULUS


121.00G Pa, 1.194'2M Atm

YOUNG MODULUS


ALLOTROPES

NONE

1,828.05 K, 1,554.90 °C

MELTING POINT


3,236.15 K, 2,963.00 °C

BOILING POINT


-

AUTOMATIC IGNITION


-

FLASHPOINT


-

CRITICAL TEMPERATURE


-

CRITICAL PRESSURE


72.000'000 W/(m K)

THERMAL CONDUCTIVITY


0.000'011'8 K¯¹

THERMAL EXPANSION


240.00 J/(kg K)

SPECIFIC HEAT


16.700 kJ/mol

HEAT FUSION


-

HEAT VAPORISATION


-

HEAT COMBUSTION


-

CURIE POINT


-

NEEL POINT


-

ADIABATIC INDEX


Solid

PHASE

Conductor

ELECTRICAL TYPE


10.00M S/m

CONDUCTIVITY


100.00n Ω.m

RESISTIVITY


-

SUPERCONDUCTING POINT


Paramagnetic

MAGNETIC TYPE


0.000'000'065'7

MASS SUSCEPTIBILITY


0.000'000'006'992'00

MOLAR SUSCEPTIBILITY


0.000'789'900'00

VOLUME SUSCEPTIBILITY

Transition Metal

CLASSIFICATION


106.192'703'8

ATOMIC WEIGHT


169 pm

ATOMIC RADIUS


120 pm

COVALENT RADIUS SINGLE BOND


117 pm

COVALENT RADIUS DOUBLE BOND


112 pm

COVALENT RADIUS TRIPLE BOND


202 pm

VAN DER WAALS RADIUS


[Kr]4d¹⁰

ELECTRON CONFIGURATION


Cubic, Face-centred

CRYSTAL STRUCTURE


12.023'00 g/cm³

DENSITY AS SOLID


10.380'00 g/cm³

DENSITY AS LIQUID


-

DENSITY AS GAS


Fm_3m

SPACE GROUP NAME


225

SPACE GROUP NUMBER


π/2, π/2 π/2

LATTICE ANGLES


389.07, 389.07 389.07 pm

LATTICE CONSTANTS

4

VALENCE


2.2

ELECTRONEGATIVITY


54.24 kJ/mol

ELECTRON AFFINITY


IONISATION ENERGY

element element element

0.000'000'2 %

UNIVERSE


0.000'066 %

METEORITES


0.000'000'3 %

SUN


0.000'000'63 %

EARTH CRUST


-

OCEANS


-

HUMANS

Stable

HALF LIFE


Stable

LIFETIME


4d¹⁰ = 4, 2, +2, -1/2

QUANTUM NUMBERS


4.480'00 b σs

NEUTRON CROSS SECTION


6.900'00 b σa

NEUTRON MASS ABSORPTION


STABLE ISOTOPES

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UNSTABLE ISOTOPES

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ISOTOPIC CHAIN

CENTRALDATACORE

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