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Thulium

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Rubidium

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Thulium

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Rubidium

Physical Properties of Thulium and Rubidium

Thulium Metal

Thulium

Rubidium Metal

Rubidium

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1 Physical

1.1 Melting Point

1,545.00 °C38.89 °C

27 3410

1.2 Boiling Point

1,730.00 °C688.00 °C

147 5660

1.3 Appearance

1.3.1 Physical State

Solid

Solid

1.3.2 Color

Silvery Gray

Grayish White

1.3.3 Luster

Metallic

NA

1.4 Hardness

1.4.1 Mohs Hardness

NA0.30

0.2 8.5

1.4.2 Brinell Hardness

471.00 MPa0.22 MPa

0.14 3490

1.4.3 Vickers Hardness

520.00 MPaNA

121 3430

1.5 Speed of Sound

NA1,300.00 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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