Physical Properties of Copper and Rubidium
Physical Properties
Melting Point
1,084.62 °C
40
38.89 °C
99+
Boiling Point
2,562.00 °C
99+
688.00 °C
99+
Appearance
Physical State
Solid
Solid
Color
Copper
Grayish White
Luster
NA
NA
Hardness
Mohs Hardness
3.00
12
0.30
24
Brinell Hardness
235.00 MPa
38
0.22 MPa
99+
Vickers Hardness
343.00 MPa
28
Not Available
Speed of Sound
3,810.00 m/s
19
1,300.00 m/s
99+
Optical Properties
Reflectivity
90.00 %
3
Not Available
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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