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Strontium
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Rubidium
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Actinide Series
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Strontium
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Rubidium
Physical Properties of Strontium and Rubidium
Strontium
Rubidium
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Summary
Periodic Table
Facts
Uses
Physical
Chemical
Atomic
Mechanical
Magnetic
Thermal
All
Physical
Melting Point
769.00 °C
38.89 °C
-38.83
3410
👆🏻
Boiling Point
1,384.00 °C
688.00 °C
0
5660
👆🏻
Appearance
Physical State
Solid
Solid
Color
Silvery White
Grayish White
Luster
Metallic
-
Hardness
Mohs Hardness
1.50
0.30
0.2
8.5
👆🏻
Brinell Hardness
110.00 MPa
0.22 MPa
0.14
3490
👆🏻
Vickers Hardness
15.00 MPa
0.22 MPa
0
3920
👆🏻
Speed of Sound
4,170.00 m/s
1,300.00 m/s
818
16200
👆🏻
Optical Properties
Refractive Index
1.43
1.54
0.155
3.41
👆🏻
Reflectivity
65.00 %
52.00 %
5
97
👆🏻
Allotropes
✔
✘
✔
✘
α Allotropes
-
-
β Allotropes
-
-
γ Allotropes
-
-
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