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Neodymium

☒

Thorium

☒

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Neodymium

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Thorium

Physical Properties of Neodymium and Thorium

Neodymium Metal

Neodymium

Thorium Metal

Thorium

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1 Physical

1.1 Melting Point

1,010.00 °C1,750.00 °C

27 3410

1.2 Boiling Point

3,127.00 °C4,790.00 °C

147 5660

1.3 Appearance

1.3.1 Physical State

Solid

Solid

1.3.2 Color

Silvery White

Silver

1.3.3 Luster

Metallic

NA

1.4 Hardness

1.4.1 Mohs Hardness

NA3.00

0.2 8.5

1.4.2 Brinell Hardness

265.00 MPa390.00 MPa

0.14 3490

1.4.3 Vickers Hardness

345.00 MPa295.00 MPa

121 3430

1.5 Speed of Sound

2,330.00 m/s2,490.00 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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