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Neodymium

☒

Thulium

☒

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Neodymium

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Thulium

Physical Properties of Neodymium and Thulium

Neodymium Metal

Neodymium

Thulium Metal

Thulium

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1 Physical

1.1 Melting Point

1,010.00 °C1,545.00 °C

27 3410

1.2 Boiling Point

3,127.00 °C1,730.00 °C

147 5660

1.3 Appearance

1.3.1 Physical State

Solid

Solid

1.3.2 Color

Silvery White

Silvery Gray

1.3.3 Luster

Metallic

Metallic

1.4 Hardness

1.4.1 Mohs Hardness

NANA

0.2 8.5

1.4.2 Brinell Hardness

265.00 MPa471.00 MPa

0.14 3490

1.4.3 Vickers Hardness

345.00 MPa520.00 MPa

121 3430

1.5 Speed of Sound

2,330.00 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

Compare Lanthanide Series » More

Neodymium Metal

Promethium Electron Configuration

Neodymium vs Promethium

Neodymium Metal

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Neodymium vs Lanthanum

Neodymium Metal

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Promethium Electron Configuration

Promethium

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Thulium Metal

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Thulium Metal

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