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Lithium
Lithium
☒

Rubidium
Rubidium
☒



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Lithium
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Rubidium

Physical Properties of Lithium and Rubidium

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Physical

Melting Point

Boiling Point

Physical State

Color

Luster

Mohs Hardness

Brinell Hardness

Vickers Hardness

Speed of Sound

Refractive Index

Reflectivity

Allotropes

α Allotropes

β Allotropes

γ Allotropes

 
180.54 °C
1,347.00 °C
Solid
Silvery White
-
0.60
5.00 MPa
5.30 MPa
6,000.00 m/s
1.35
95.00 %
✔✘
-
-
-
 
38.89 °C
688.00 °C
Solid
Grayish White
-
0.30
0.22 MPa
0.22 MPa
1,300.00 m/s
1.54
52.00 %
✔✘
-
-
-