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Yttrium
Yttrium

Europium
Europium



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Yttrium
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Yttrium vs Europium

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1 Periodic Table
1.1 Symbol
Y
Eu
1.2 Group Number
3NA
0 17
1.3 Period Number
56
2 7
1.4 Block
d block
f block
1.5 Element Family
Transition Metal
Lanthanide
1.6 CAS Number
74406557440531
7429905 54386242
1.7 Space Group Name
P63/mmc
Im_ 3m
1.8 Space Group Number
194.00229.00
11 229
2 Facts
2.1 Interesting Facts
  • Yttrium Metal is highly toxic.
  • Yttrium Metal is highly reactive in nature hence not found free in nature.
Not Available
2.2 Sources
Found in Minerals, Mining, Ores of Minerals
Found in Minerals, Mining, Ores of Minerals
2.3 History
2.3.1 Who Discovered
Johan Gadolin
Eugène-Anatole Demarçay
2.3.2 Discovery
In 1794
In 1896
2.4 Abundance
2.4.1 Abundance In Universe
7 * 10-7 %5 * 10-8 %
5E-09 0.11
2.4.2 Abundance In Sun
~0.0000001 %~0.00000005 %
1E-08 0.1
2.4.3 Abundance In Meteorites
0.00 %0.00 %
1.7E-07 22
2.4.4 Abundance In Earth's Crust
0.00 %0.00 %
9.9E-12 8.1
2.4.5 Abundance In Oceans
0.00 %0.00 %
2E-23 1.1
2.4.6 Abundance In Humans
NANA
1E-13 1.4
3 Uses
3.1 Uses & Benefits
  • Yttrium metal is used in different alloys, as it increases the strength of aluminum Magnesium alloy. It is used for radar microwave filter.
  • It is also used as a catalyst in ethene polymerisation.
  • Europium metals main uses is in the printing of euro banknotes. These notes glow red under UV light.
  • It is used in low energy light bulbs.
3.1.1 Industrial Uses
Electrical Industry, Electronic Industry
Chemical Industry
3.1.2 Medical Uses
NA
NA
3.1.3 Other Uses
Alloys
Alloys
3.2 Biological Properties
3.2.1 Toxicity
Highly Toxic
Non Toxic
3.2.2 Present in Human Body
3.2.3 In Blood
0.00 Blood/mg dm-3NA
0 1970
3.2.4 In Bone
0.07 p.p.m.NA
0 170000
4 Physical
4.1 Melting Point
1,523.00 °C822.00 °C
27 3410
4.2 Boiling Point
3,337.00 °C1,597.00 °C
147 5660
4.3 Appearance
4.3.1 Physical State
Solid
Solid
4.3.2 Color
Silvery White
Silvery White
4.3.3 Luster
NA
Lustrous
4.4 Hardness
4.4.1 Mohs Hardness
NANA
0.2 8.5
4.4.2 Brinell Hardness
589.00 MPaNA
0.14 3490
4.4.3 Vickers Hardness
NA167.00 MPa
121 3430
4.5 Speed of Sound
3,300.00 m/sNA
818 16200
4.6 Optical Properties
4.6.1 Refractive Index
NANA
1.000933 1.7229
4.6.2 Reflectivity
NANA
58 97
4.7 Allotropes
4.7.1 α Allotropes
Not Available
Not Available
4.7.2 β Allotropes
Not Available
Not Available
4.7.3 γ Allotropes
Not Available
Not Available
5 Chemical
5.1 Chemical Formula
Y
Eu
5.2 Isotopes
5.2.1 Known Isotopes
1931
0 38
5.3 Electronegativity
5.3.1 Pauling Electronegativity
1.221.20
0.7 2.54
5.3.2 Sanderson Electronegativity
0.651.01
0.22 2.56
5.3.3 Allred Rochow Electronegativity
1.11NA
0.86 1.82
5.3.4 Mulliken-Jaffe Electronegativity
NANA
0.62 2.48
5.3.5 Allen Electronegativity
1.12NA
0.659 2.7
5.4 Electropositivity
5.4.1 Pauling Electropositivity
2.78NA
1.46 3.3
5.5 Ionization Energies
5.5.1 1st Energy Level
600.00 kJ/mol547.10 kJ/mol
375.7 26130
5.5.2 2nd Energy Level
1,180.00 kJ/mol1,085.00 kJ/mol
710.2162 28750
5.5.3 3rd Energy Level
1,980.00 kJ/mol2,404.00 kJ/mol
1600 34230
5.5.4 4th Energy Level
5,847.00 kJ/mol4,120.00 kJ/mol
2780 37066
5.5.5 5th Energy Level
7,430.00 kJ/molNA
4305.2 97510
5.5.6 6th Energy Level
8,970.00 kJ/molNA
5715.8 105800
5.5.7 7th Energy level
11,190.00 kJ/molNA
7226.8 114300
5.5.8 8th Energy Level
12,450.00 kJ/molNA
8857.4 125300
5.5.9 9th Energy Level
14,110.00 kJ/molNA
14110 134700
5.5.10 10th Energy Level
18,400.00 kJ/molNA
17100 144300
5.5.11 11th Energy Level
19,900.00 kJ/molNA
19900 169988
5.5.12 12th Energy Level
36,090.00 kJ/molNA
22219 189368
5.5.13 13th Energy Level
NANA
26930 76015
5.5.14 14th Energy Level
NANA
29196 86450
5.5.15 15th Energy Level
NANA
41987 97510
5.5.16 16th Energy Level
NANA
47206 109480
5.5.17 17th Energy Level
NANA
52737 122200
5.5.18 18th Energy Level
NANA
58570 134810
5.5.19 19th Energy Level
NANA
64702 148700
5.5.20 20th Energy Level
NANA
80400 171200
5.5.21 21st Energy Level
NANA
87000 179100
5.5.22 22nd Energy Level
NANA
93400 184900
5.5.23 23rd Energy Level
NANA
98420 198800
5.5.24 24th Energy Level
NANA
104400 195200
5.5.25 25th Energy Level
NANA
121900 121900
5.5.26 26th Energy Level
NANA
127700 127700
5.5.27 27th Energy Level
NANA
133800 133800
5.5.28 28th Energy Level
NANA
139800 139800
5.5.29 29th Energy Level
NANA
148100 148100
5.5.30 30th Energy Level
NANA
154500 154500
5.6 Electrochemical Equivalent
1.11 g/amp-hr1.89 g/amp-hr
0.16812 8.3209
5.7 Electron Work Function
3.10 eV2.50 eV
2.14 5.65
5.8 Other Chemical Properties
Chemical Stability, Flammable, Ionization, Radioactive Isotopes, Solubility
Ionization, Radioactive Isotopes, Solubility
6 Atomic
6.1 Atomic Number
3963
3 117
6.2 Electron Configuration
[Kr] 4d1 5s2
[Xe] 4f7 6s2
6.3 Crystal Structure
Hexagonal Close Packed (HCP)
Body Centered Cubic (BCC)
6.3.1 Crystal Lattice
6.4 Atom
6.4.1 Number of Protons
3963
3 117
6.4.2 Number of Neutrons
5089
4 184
6.4.3 Number of Electrons
3963
3 117
6.5 Radius of an Atom
6.5.1 Atomic Radius
180.00 pm180.00 pm
112 265
6.5.2 Covalent Radius
190.00 pm198.00 pm
96 260
6.5.3 Van der Waals Radius
200.00 pm233.00 pm
139 348
6.6 Atomic Weight
88.91 amu151.96 amu
6.94 294
6.7 Atomic Volume
19.80 cm3/mol28.90 cm3/mol
1.39 71.07
6.8 Adjacent Atomic Numbers
6.8.1 Previous Element
6.8.2 Next Element
6.9 Valence Electron Potential
48.00 (-eV)45.60 (-eV)
8 392.42
6.10 Lattice Constant
364.74 pm458.10 pm
228.58 891.25
6.11 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
6.12 Lattice C/A Ratio
1.57NA
1.567 1.886
7 Mechanical
7.1 Density
7.1.1 Density At Room Temperature
4.47 g/cm35.26 g/cm3
0.534 40.7
7.1.2 Density When Liquid (at m.p.)
4.24 g/cm35.13 g/cm3
0.512 20
7.2 Tensile Strength
NA120.00 MPa
2.5 11000
7.3 Viscosity
NANA
0.001526 0.001526
7.4 Vapor Pressure
7.4.1 Vapor Pressure at 1000 K
0.00 (Pa)19.40 (Pa)
2.47E-11 121
7.4.2 Vapor Pressure at 2000 K
4.27 (Pa)NA
2.62E-10 774
7.5 Elasticity properties
7.5.1 Shear Modulus
25.60 GPa7.90 GPa
1.3 222
7.5.2 Bulk Modulus
41.20 GPa8.30 GPa
1.6 462
7.5.3 Young's Modulus
63.50 GPa18.20 GPa
1.7 528
7.6 Poisson Ratio
0.240.15
0.032 0.47
7.7 Other Mechanical Properties
Ductile
Ductile
8 Magnetic
8.1 Magnetic Characteristics
8.1.1 Specific Gravity
4.475.24
0.53 4500
8.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
8.1.3 Permeability
NANA
1.25643E-06 0.0063
8.1.4 Susceptibility
NANA
-0.000166 200000
8.2 Electrical Properties
8.2.1 Electrical Property
Conductor
Conductor
8.2.2 Resistivity
596.00 nΩ·m0.90 nΩ·m
0.18 961
8.2.3 Electrical Conductivity
0.02 106/cm Ω0.01 106/cm Ω
0.00666 0.63
8.2.4 Electron Affinity
29.60 kJ/mol50.00 kJ/mol
0 222.8
9 Thermal
9.1 Specific Heat
0.30 J/(kg K)0.18 J/(kg K)
0.11 3.6
9.2 Molar Heat Capacity
26.53 J/mol·K27.66 J/mol·K
16.443 62.7
9.3 Thermal Conductivity
17.20 W/m·K13.90 W/m·K
6.3 429
9.4 Critical Temperature
NANA
26.3 3223
9.5 Thermal Expansion
10.60 µm/(m·K)35.00 µm/(m·K)
4.5 97
9.6 Enthalpy
9.6.1 Enthalpy of Vaporization
393.00 kJ/mol143.50 kJ/mol
7.32 799.1
9.6.2 Enthalpy of Fusion
17.15 kJ/mol9.21 kJ/mol
2.1 35.23
9.6.3 Enthalpy of Atomization
418.00 kJ/mol180.00 kJ/mol
61.5 837
9.7 Standard Molar Entropy
44.40 J/mol.K77.80 J/mol.K
9.5 198.1