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Rubidium
Rubidium

Protactinium
Protactinium



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Rubidium
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Protactinium

Physical Properties of Rubidium and Protactinium

1 Physical
1.1 Melting Point
38.89 °C1,568.00 °C
Physical Properties of Francium
27 3410
1.2 Boiling Point
688.00 °C4,027.00 °C
Physical Properties of Flerovium
147 5660
1.3 Appearance
1.3.1 Physical State
Solid
Solid
1.3.2 Color
Grayish White
Silver
1.3.3 Luster
NA
Metallic
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