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Nickel
Nickel

Platinum
Platinum



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Nickel
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Platinum

Physical Properties of Nickel and Platinum

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Physical

Melting Point

1,453.00 °C1,772.00 °C
-38.83 3410
👆🏻

Boiling Point

2,732.00 °C3,827.00 °C
0 5660
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Appearance

Physical State

Solid
Solid

Color

Silver
Silvery White

Luster

Metallic
Metallic

Hardness

Mohs Hardness

4.003.50
0.2 8.5
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Brinell Hardness

667.00 MPa300.00 MPa
0.14 3490
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Vickers Hardness

638.00 MPa400.00 MPa
0 3920
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Speed of Sound

4,900.00 m/s2,800.00 m/s
818 16200
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Optical Properties

Refractive Index

1.682.41
0.155 3.41
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Reflectivity

72.00 %73.00 %
5 97
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Allotropes

α Allotropes

-
-

β Allotropes

-
-

γ Allotropes

-
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