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Physical Properties of Beryllium and Potassium

Beryllium
Potassium
Physical Properties of Potassium and Beryllium


Physical Properties
Melting Point
1,278.00 °C   
36
63.65 °C   
99+
Boiling Point
2,970.00 °C   
32
774.00 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
White Gray   
Silvery Gray   
Luster
Metallic   
NA   
Hardness
  
  
Mohs Hardness
5.50   
7
0.40   
23
Brinell Hardness
590.00 MPa   
21
0.36 MPa   
99+
Vickers Hardness
1,670.00 MPa   
4
Not Available   
Speed of Sound
12,890.00 m/s   
2
2,000.00 m/s   
99+
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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