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Alkaline Earth Metals
Alkali Metals
f
Rubidium
Summary
Periodic Table
Facts
Uses
Physical
Chemical
Atomic
Mechanical
Magnetic
Thermal
All
Physical
Melting Point
38.89 °C 78
Boiling Point
688.00 °C 76
Appearance
Physical State
Solid
Color
Grayish White
Luster
-
Hardness
Mohs Hardness
0.30 26
Brinell Hardness
0.22 MPa 70
Vickers Hardness
0.22 MPa 71
Speed of Sound
1,300.00 m/s 68
Optical Properties
Refractive Index
1.54 35
Reflectivity
52.00 % 29
Allotropes
No
α Allotropes
-
β Allotropes
-
γ Allotropes
-
Chemical >>
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Alkali Metals
Francium
Cesium
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