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Alkaline Earth Metals
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Potassium
Summary
Periodic Table
Facts
Uses
Physical
Chemical
Atomic
Mechanical
Magnetic
Thermal
All
Physical
Melting Point
63.65 °C 77
Boiling Point
774.00 °C 74
Appearance
Physical State
Solid
Color
Silvery Gray
Luster
-
Hardness
Mohs Hardness
0.40 25
Brinell Hardness
0.36 MPa 69
Vickers Hardness
100.00 MPa 63
Speed of Sound
2,000.00 m/s 62
Optical Properties
Refractive Index
1.33 42
Reflectivity
72.00 % 11
Allotropes
No
α Allotropes
-
β Allotropes
-
γ Allotropes
-
Chemical >>
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Alkali Metals
Magnesium
Titanium
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Neodymium
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