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Americium
Americium

Curium
Curium



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Americium
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Curium

Physical Properties of Americium and Curium

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Physical

Melting Point

994.00 °C1,340.00 °C
-38.83 3410
👆🏻

Boiling Point

2,607.00 °C3,110.00 °C
0 5660
👆🏻

Appearance

Physical State

Solid
Solid

Color

Silvery White
Silver

Luster

-
Metallic

Hardness

Mohs Hardness

6.002.00
0.2 8.5
👆🏻

Brinell Hardness

260.00 MPa320.00 MPa
0.14 3490
👆🏻

Vickers Hardness

600.00 MPa461.00 MPa
0 3920
👆🏻

Speed of Sound

2,750.00 m/s2,260.00 m/s
818 16200
👆🏻

Optical Properties

Refractive Index

1.301.30
0.155 3.41
👆🏻

Reflectivity

64.00 %60.00 %
5 97
👆🏻

Allotropes

α Allotropes

-
-

β Allotropes

-
-

γ Allotropes

-
-