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Cerium

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Terbium

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Cerium

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Terbium

Physical Properties of Cerium and Terbium

Cerium Metal

Cerium

Terbium Metal

Terbium

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1 Physical

1.1 Melting Point

795.00 °C1,356.00 °C

27 3410

1.2 Boiling Point

3,257.00 °C3,123.00 °C

147 5660

1.3 Appearance

1.3.1 Physical State

Solid

Solid

1.3.2 Color

Silvery White

Silvery White

1.3.3 Luster

Lustrous

Metallic

1.4 Hardness

1.4.1 Mohs Hardness

2.50NA

0.2 8.5

1.4.2 Brinell Hardness

186.00 MPa677.00 MPa

0.14 3490

1.4.3 Vickers Hardness

210.00 MPa863.00 MPa

121 3430

1.5 Speed of Sound

2,100.00 m/s2,620.00 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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