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Tungsten

☒

Roentgenium

☒

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Tungsten

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Roentgenium

Physical Properties of Tungsten and Roentgenium

Tungsten Metal

Tungsten

Roentgenium Metal

Roentgenium

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1 Physical

1.1 Melting Point

3,410.00 °CNA

27 3410

1.2 Boiling Point

5,660.00 °CNA

147 5660

1.3 Appearance

1.3.1 Physical State

Solid

Solid

1.3.2 Color

Grayish White

Silver

1.3.3 Luster

Lustrous

Unknown Luster

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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