Cadmium, Cd (48)

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CADMIUM

Cd (48)

ˈkædmiəm

PHONETICS

Cadmium is a soft, bluish-white metal is chemically similar to the two other stable metals, zinc and mercury. Like zinc, it prefers oxidation state +2 in most of its compounds and like mercury it shows a low melting point compared to transition metals.

ELEMENT BRIEF

1817 by Friedrich Strohmeyer, Germany.

DISCOVERY

Latin, 'cadmia' meaning 'calamine'.

ETYMOLOGY

Cadmium

ELEMENT

Cd

SYMBOL

48

ATOMIC NUMBER

7440-43-9

CAS NUMBER
element

ELEMENTAL SPECTRUM


Silver

ELEMENTAL COLOUR


-

REFRACTIVE INDEX


0.300

POISSON RATIO


12.996 cm³

MOLAR VOLUME


203.00M Pa, 2.003'5k Atm

BRINELL HARDNESS


2.00

MOHS HARDNESS


-

VICKERS HARDNESS


2,310 m/s, Mach 6.734'7

SPEED OF SOUND


42.00G Pa, 414.507'8k Atm

BULK MODULUS


30.00G Pa, 296.077'0k Atm

SHEAR MODULUS


50.00G Pa, 493.461'6k Atm

YOUNG MODULUS


ALLOTROPES

NONE

594.22 K, 321.07 °C

MELTING POINT


2,435.15 K, 2,162.00 °C

BOILING POINT


523.15 K, 250.00 °C

AUTOMATIC IGNITION


-

FLASHPOINT


-

CRITICAL TEMPERATURE


-

CRITICAL PRESSURE


97.000'000 W/(m K)

THERMAL CONDUCTIVITY


0.000'030'8 K¯¹

THERMAL EXPANSION


230.00 J/(kg K)

SPECIFIC HEAT


6.300 kJ/mol

HEAT FUSION


100.000 kJ/mol

HEAT VAPORISATION


-

HEAT COMBUSTION


-

CURIE POINT


-

NEEL POINT


-

ADIABATIC INDEX


Solid

PHASE

Conductor

ELECTRICAL TYPE


14.00M S/m

CONDUCTIVITY


70.00n Ω.m

RESISTIVITY


0.517 K

SUPERCONDUCTING POINT


Diamagnetic

MAGNETIC TYPE


-0.000'000'002'3

MASS SUSCEPTIBILITY


-0.000'000'000'259'00

MOLAR SUSCEPTIBILITY


-0.000'019'900'00

VOLUME SUSCEPTIBILITY

Transition Metal

CLASSIFICATION


112.411'552'2

ATOMIC WEIGHT


161 pm

ATOMIC RADIUS


136 pm

COVALENT RADIUS SINGLE BOND


144 pm

COVALENT RADIUS DOUBLE BOND


-

COVALENT RADIUS TRIPLE BOND


230 pm

VAN DER WAALS RADIUS


[Kr]5s²4d¹⁰

ELECTRON CONFIGURATION


Hexagonal, Close Packed Single

CRYSTAL STRUCTURE


8.650'00 g/cm³

DENSITY AS SOLID


7.996'00 g/cm³

DENSITY AS LIQUID


-

DENSITY AS GAS


p6₃/mmc

SPACE GROUP NAME


194

SPACE GROUP NUMBER


π/2, π/2 2π/3

LATTICE ANGLES


297.94, 297.94 561.86 pm

LATTICE CONSTANTS

2

VALENCE


1.69

ELECTRONEGATIVITY


67.54 kJ/mol

ELECTRON AFFINITY


IONISATION ENERGY

element element element

0.000'000'2 %

UNIVERSE


0.000'044 %

METEORITES


0.000'000'6 %

SUN


0.000'012 %

EARTH CRUST


0.000'000'005 %

OCEANS


0.000'07 %

HUMANS

Stable

HALF LIFE


Stable

LIFETIME


4d¹⁰ = 4, 2, +2, -1/2

QUANTUM NUMBERS


6.500'00 b σs

NEUTRON CROSS SECTION


2,520.000'00 b σa

NEUTRON MASS ABSORPTION


STABLE ISOTOPES

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UNSTABLE ISOTOPES

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ISOTOPIC CHAIN

CENTRALDATACORE

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