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Osmium

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Promethium

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Osmium

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Promethium

Physical Properties of Osmium and Promethium

Osmium Metal

Osmium

Promethium Electron Configuration

Promethium

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1 Physical

1.1 Melting Point

3,045.00 °C1,042.00 °C

27 3410

1.2 Boiling Point

5,027.00 °C3,000.00 °C

147 5660

1.3 Appearance

1.3.1 Physical State

Solid

Solid

1.3.2 Color

Silvery Bluish-Gray

Unknown

1.3.3 Luster

Metallic

Metallic

1.4 Hardness

1.4.1 Mohs Hardness

7.00NA

0.2 8.5

1.4.2 Brinell Hardness

3,490.00 MPaNA

0.14 3490

1.4.3 Vickers Hardness

NANA

121 3430

1.5 Speed of Sound

4,940.00 m/sNA

818 16200

1.6 Optical Properties

1.6.1 Refractive Index

NANA

1.000933 1.7229

1.6.2 Reflectivity

NANA

58 97

1.7 Allotropes

✔ ✘

✔ ✘

1.7.1 α Allotropes

Not Available

Not Available

1.7.2 β Allotropes

Not Available

Not Available

1.7.3 γ Allotropes

Not Available

Not Available

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