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Niobium

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Darmstadtium

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Niobium

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Darmstadtium

Physical Properties of Niobium and Darmstadtium

Niobium Metal

Niobium

Darmstadtium Metal

Darmstadtium

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1 Physical

1.1 Melting Point

2,468.00 °CNA

27 3410

1.2 Boiling Point

2,468.00 °CNA

147 5660

1.3 Appearance

1.3.1 Physical State

Solid

Solid

1.3.2 Color

Gray

Unknown

1.3.3 Luster

Metallic

Unknown Luster

1.4 Hardness

1.4.1 Mohs Hardness

6.00NA

0.2 8.5

1.4.2 Brinell Hardness

735.00 MPaNA

0.14 3490

1.4.3 Vickers Hardness

870.00 MPaNA

121 3430

1.5 Speed of Sound

3,480.00 m/s5,090.00 m/s

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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