DYSPROSIUM, Dy (66)
HYDROGEN TO OGANESSON
ATOMIC ARCHITECTURE
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
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
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
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
UNSTABLE ISOTOPES
ISOTOPIC CHAIN
CENTRALDATACORE
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