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Potassium
Potassium

Barium
Barium



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Potassium
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Barium

Physical Properties of Potassium and Barium

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1 Physical
1.1 Melting Point
63.65 °C725.00 °C
Physical Properties of Francium
27 3410
1.2 Boiling Point
774.00 °C1,140.00 °C
Physical Properties of Flerovium
147 5660
1.3 Appearance
1.3.1 Physical State
Solid
Solid
1.3.2 Color
Silvery Gray
Silvery Gray
1.3.3 Luster
NA
NA
1.4 Hardness
1.4.1 Mohs Hardness
0.401.25
Physical Properties of Cesium
0.2 8.5
1.4.2 Brinell Hardness
0.36 MPaNA
Physical Properties of Cesium
0.14 3490
1.4.3 Vickers Hardness
NANA
Physical Properties of Palladium
121 3430
1.5 Speed of Sound
2,000.00 m/s1,620.00 m/s
Physical Properties of Thallium
818 16200
1.6 Optical Properties
1.6.1 Refractive Index
NANA
Physical Properties of Mercury
1.000933 1.7229
1.6.2 Reflectivity
NANA
Physical Properties of Molybdenum
58 97
1.7 Allotropes
1.7.1 α Allotropes
Not Available
Not Available
1.7.2 β Allotropes
Not Available
Not Available
1.7.3 γ Allotropes
Not Available
Not Available