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Potassium
Potassium

Rubidium
Rubidium



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Potassium
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Rubidium

Physical Properties of Potassium and Rubidium

1 Physical
1.1 Melting Point
Physical Proper..
63.65 °C
Rank: 77 (Overall)
38.89 °C
Rank: 78 (Overall)
Physical Properties of Francium
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1.4 Boiling Point
Physical Proper..
774.00 °C
Rank: 72 (Overall)
688.00 °C
Rank: 74 (Overall)
Physical Properties of Flerovium
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1.5 Appearance
1.5.1 Physical State
Solid
Solid
1.5.2 Color
Silvery Gray
Grayish White
1.5.3 Luster
NA
NA
1.6 Hardness
1.7.1 Mohs Hardness
Physical Proper..
0.40
Rank: 23 (Overall)
0.30
Rank: 24 (Overall)
Physical Properties of Cesium
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1.7.2 Brinell Hardness
Physical Proper..
0.36 MPa
Rank: 54 (Overall)
0.22 MPa
Rank: 55 (Overall)
Physical Properties of Cesium
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1.8.1 Vickers Hardness
Physical Proper..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Physical Properties of Palladium
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1.10 Speed of Sound
Physical Proper..
2,000.00 m/s
Rank: 45 (Overall)
1,300.00 m/s
Rank: 50 (Overall)
Physical Properties of Thallium
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1.11 Optical Properties
1.11.1 Refractive Index
Physical Proper..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Physical Properties of Mercury
1.11.3 Reflectivity
Physical Proper..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Physical Properties of Molybdenum
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1.12 Allotropes
No Alkali Metals Metals has it !
No Alkali Metals Metals has it !
1.12.1 α Allotropes
Not Available
Not Available
1.12.2 β Allotropes
Not Available
Not Available
1.12.3 γ Allotropes
Not Available
Not Available
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