Physical Properties of Lithium and Sodium
Physical Properties
Melting Point
180.54 °C
99+
97.72 °C
99+
Boiling Point
1,347.00 °C
99+
883.00 °C
99+
Appearance
Physical State
Solid
Solid
Color
Silvery White
Silvery White
Luster
NA
Metallic
Hardness
Mohs Hardness
0.60
21
0.50
22
Brinell Hardness
5.00 MPa
99+
0.69 MPa
99+
Speed of Sound
6,000.00 m/s
3
3,200.00 m/s
24
Optical Properties
Allotropes
No
No
α Allotropes
Not Available
Not Available
β Allotropes
Not Available
Not Available
γ Allotropes
Not Available
Not Available
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