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Cerium
Cerium

Polonium
Polonium



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Cerium
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Polonium

Physical Properties of Cerium and Polonium

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1 Physical
1.1 Melting Point
795.00 °C254.00 °C
Physical Properties of Francium
27 3410
1.2 Boiling Point
3,257.00 °C962.00 °C
Physical Properties of Flerovium
147 5660
1.3 Appearance
1.3.1 Physical State
Solid
Solid
1.3.2 Color
Silvery White
Silver
1.3.3 Luster
Lustrous
NA
1.4 Hardness
1.4.1 Mohs Hardness
2.50NA
Physical Properties of Cesium
0.2 8.5
1.4.2 Brinell Hardness
186.00 MPaNA
Physical Properties of Cesium
0.14 3490
1.4.3 Vickers Hardness
210.00 MPaNA
Physical Properties of Palladium
121 3430
1.5 Speed of Sound
2,100.00 m/sNA
Physical Properties of Thallium
818 16200
1.6 Optical Properties
1.6.1 Refractive Index
NANA
Physical Properties of Mercury
1.000933 1.7229
1.6.2 Reflectivity
NANA
Physical Properties of Molybdenum
58 97
1.7 Allotropes
1.7.1 α Allotropes
Not Available
α-polonium
1.7.2 β Allotropes
Not Available
β-polonium
1.7.3 γ Allotropes
Not Available
Not Available