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Zirconium

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Roentgenium

☒

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Zirconium

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Roentgenium

Physical Properties of Zirconium and Roentgenium

Zirconium Metal

Zirconium

Roentgenium Metal

Roentgenium

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1 Physical

1.1 Melting Point

1,852.00 °CNA

27 3410

1.2 Boiling Point

4,377.00 °CNA

147 5660

1.3 Appearance

1.3.1 Physical State

Solid

Solid

1.3.2 Color

Silvery White

Silver

1.3.3 Luster

Lustrous

Unknown Luster

1.4 Hardness

1.4.1 Mohs Hardness

5.00NA

0.2 8.5

1.4.2 Brinell Hardness

638.00 MPaNA

0.14 3490

1.4.3 Vickers Hardness

820.00 MPaNA

121 3430

1.5 Speed of Sound

3,800.00 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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