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Yttrium
Yttrium

Europium
Europium



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Yttrium
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Europium

Physical Properties of Yttrium and Europium

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1 Physical
1.1 Melting Point
1,523.00 °C822.00 °C
27 3410
1.2 Boiling Point
3,337.00 °C1,597.00 °C
147 5660
1.3 Appearance
1.3.1 Physical State
Solid
Solid
1.3.2 Color
Silvery White
Silvery White
1.3.3 Luster
NA
Lustrous
1.4 Hardness
1.4.1 Mohs Hardness
NANA
0.2 8.5
1.4.2 Brinell Hardness
589.00 MPaNA
0.14 3490
1.4.3 Vickers Hardness
NA167.00 MPa
121 3430
1.5 Speed of Sound
3,300.00 m/sNA
818 16200
1.6 Optical Properties
1.6.1 Refractive Index
NANA
1.000933 1.7229
1.6.2 Reflectivity
NANA
58 97
1.7 Allotropes
1.7.1 α Allotropes
Not Available
Not Available
1.7.2 β Allotropes
Not Available
Not Available
1.7.3 γ Allotropes
Not Available
Not Available