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Actinium

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Physical Properties of Actinium

Actinium

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Physical

Melting Point

1,227.00 °C

Rank: 38 (Overall)

-38.83 3410

👆🏻

Boiling Point

3,200.00 °C

Rank: 27 (Overall)

0 5660

👆🏻

Appearance

Physical State

Solid

Color

Silvery White

Luster

-

Hardness

Mohs Hardness

6.50

Rank: 5 (Overall)

0.2 8.5

👆🏻

Brinell Hardness

70.00 MPa

Rank: 61 (Overall)

0.14 3490

👆🏻

Vickers Hardness

260.00 MPa

Rank: 48 (Overall)

0 3920

👆🏻

Speed of Sound

3,430.00 m/s

Rank: 32 (Overall)

818 16200

👆🏻

Optical Properties

Refractive Index

1.00

Rank: 49 (Overall)

0.155 3.41

👆🏻

Reflectivity

62.00 %

Rank: 21 (Overall)

5 97

👆🏻

Allotropes

✔ ✘

No - Actinide Series Metals has it !

α Allotropes

-

β Allotropes

-

γ Allotropes

-

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