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Tungsten

☒

Neptunium

☒

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Tungsten

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Neptunium

Physical Properties of Tungsten and Neptunium

Tungsten Metal

Tungsten

Neptunium Electron Configuration

Neptunium

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1 Physical

1.1 Melting Point

3,410.00 °C640.00 °C

27 3410

1.2 Boiling Point

5,660.00 °C3,902.00 °C

147 5660

1.3 Appearance

1.3.1 Physical State

Solid

Solid

1.3.2 Color

Grayish White

Silver

1.3.3 Luster

Lustrous

Metallic

1.4 Hardness

1.4.1 Mohs Hardness

7.50NA

0.2 8.5

1.4.2 Brinell Hardness

2,000.00 MPaNA

0.14 3490

1.4.3 Vickers Hardness

3,430.00 MPaNA

121 3430

1.5 Speed of Sound

4,620.00 m/sNA

818 16200

1.6 Optical Properties

1.6.1 Refractive Index

NANA

1.000933 1.7229

1.6.2 Reflectivity

62.00 %NA

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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