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Thulium

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Ytterbium

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Thulium

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Ytterbium

Physical Properties of Thulium and Ytterbium

Thulium Metal

Thulium

Ytterbium Metal

Ytterbium

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1 Physical

1.1 Melting Point

1,545.00 °C824.00 °C

27 3410

1.2 Boiling Point

1,730.00 °C1,196.00 °C

147 5660

1.3 Appearance

1.3.1 Physical State

Solid

Solid

1.3.2 Color

Silvery Gray

Silvery White

1.3.3 Luster

Metallic

Metallic

1.4 Hardness

1.4.1 Mohs Hardness

NANA

0.2 8.5

1.4.2 Brinell Hardness

471.00 MPa343.00 MPa

0.14 3490

1.4.3 Vickers Hardness

520.00 MPa206.00 MPa

121 3430

1.5 Speed of Sound

NA1,590.00 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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