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Rubidium
Rubidium

Francium
Francium



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Rubidium
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Francium

Physical Properties of Rubidium and Francium

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1 Physical
1.1 Melting Point
38.89 °C27.00 °C
Tin
27 3410
1.2 Boiling Point
688.00 °C677.00 °C
Physical Properties of Flerovium
147 5660
1.3 Appearance
1.3.1 Physical State
Solid
Solid
1.3.2 Color
Grayish White
NA
1.3.3 Luster
NA
NA
1.4 Hardness
1.4.1 Mohs Hardness
0.30NA
Physical Properties of Cesium
0.2 8.5
1.4.2 Brinell Hardness
0.22 MPaNA
Physical Properties of Cesium
0.14 3490
1.4.3 Vickers Hardness
NANA
Physical Properties of Palladium
121 3430
1.5 Speed of Sound
1,300.00 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
Not Available
1.7.2 β Allotropes
Not Available
Not Available
1.7.3 γ Allotropes
Not Available
Not Available