DYSPROSIUM, Dy (66)

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ATOMIC ARCHITECTURE

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Dysprosium

Dy (66)

dɪsˈproʊziəm

PHONETICS

Dysprosium is a rare earth element with a metallic silver lustre. Never found in nature as a free element, it is found in various minerals, such as xenotime.

ELEMENT BRIEF

1886 by Paul Emile Lecoq de Boisbaudran, France.

DISCOVERY

Ancient Greek, 'dysprositos' meaning 'hard to obtain'.

ETYMOLOGY

Dysprosium

ELEMENT

Dy

SYMBOL

66

ATOMIC NUMBER

7429-91-6

CAS NUMBER
element

ELEMENTAL SPECTRUM


Silver

ELEMENTAL COLOUR


-

REFRACTIVE INDEX


0.250

POISSON RATIO


19.003 cm³

MOLAR VOLUME


500.00M Pa, 4.934'6k Atm

BRINELL HARDNESS


1.80

MOHS HARDNESS


540.00M Pa, 5.329'4k Atm

VICKERS HARDNESS


2,710 m/s, Mach 7.900'9

SPEED OF SOUND


41.00G Pa, 404.638'5k Atm

BULK MODULUS


25.00G Pa, 246.730'8k Atm

SHEAR MODULUS


61.00G Pa, 602.023'2k Atm

YOUNG MODULUS


ALLOTROPES

element element element element

1,685.15 K, 1,412.00 °C

MELTING POINT


2,840.15 K, 2,567.00 °C

BOILING POINT


-

AUTOMATIC IGNITION


-

FLASHPOINT


-

CRITICAL TEMPERATURE


-

CRITICAL PRESSURE


11.000'000 W/(m K)

THERMAL CONDUCTIVITY


0.000'009'9 K¯¹

THERMAL EXPANSION


167.00 J/(kg K)

SPECIFIC HEAT


11.100 kJ/mol

HEAT FUSION


280.000 kJ/mol

HEAT VAPORISATION


-

HEAT COMBUSTION


87.00 K, -186.15 °C

CURIE POINT


178.00 K, -95.15 °C

NEEL POINT


-

ADIABATIC INDEX


Solid

PHASE

Conductor

ELECTRICAL TYPE


1.10M S/m

CONDUCTIVITY


910.00n Ω.m

RESISTIVITY


-

SUPERCONDUCTING POINT


Paramagnetic

MAGNETIC TYPE


0.000'005'450'0

MASS SUSCEPTIBILITY


0.000'000'885'625'00

MOLAR SUSCEPTIBILITY


0.046'603'000'00

VOLUME SUSCEPTIBILITY

Lanthanide

CLASSIFICATION


162.497'033'5

ATOMIC WEIGHT


228 pm

ATOMIC RADIUS


167 pm

COVALENT RADIUS SINGLE BOND


133 pm

COVALENT RADIUS DOUBLE BOND


-

COVALENT RADIUS TRIPLE BOND


229 pm

VAN DER WAALS RADIUS


[Xe]6s²4f¹⁰

ELECTRON CONFIGURATION


Hexagonal, Close Packed Single

CRYSTAL STRUCTURE


8.551'00 g/cm³

DENSITY AS SOLID


8.370'00 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


359.3, 359.3 565.37 pm

LATTICE CONSTANTS

3

VALENCE


1.22

ELECTRONEGATIVITY


33.96 kJ/mol

ELECTRON AFFINITY


IONISATION ENERGY

element element element element

0.000'000'2 %

UNIVERSE


0.000'027 %

METEORITES


0.000'000'2 %

SUN


0.000'62 %

EARTH CRUST


0.000'000'000'09 %

OCEANS


-

HUMANS

Stable

HALF LIFE


Stable

LIFETIME


4f¹⁰ = 4, 3, -1, -1/2

QUANTUM NUMBERS


90.300'00 b σs

NEUTRON CROSS SECTION


994.000'00 b σa

NEUTRON MASS ABSORPTION


STABLE ISOTOPES

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UNSTABLE ISOTOPES

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ISOTOPIC CHAIN

CENTRALDATACORE

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