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Lutetium

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Praseodymium

☒

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Lutetium

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Praseodymium

Physical Properties of Lutetium and Praseodymium

Lutetium Metal

Lutetium

Praseodymium Metal

Praseodymium

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1 Physical

1.1 Melting Point

1,652.00 °C935.00 °C

27 3410

1.2 Boiling Point

3,402.00 °C3,130.00 °C

147 5660

1.3 Appearance

1.3.1 Physical State

Solid

Solid

1.3.2 Color

Silvery White

Grayish 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

893.00 MPa481.00 MPa

0.14 3490

1.4.3 Vickers Hardness

1,160.00 MPa400.00 MPa

121 3430

1.5 Speed of Sound

NA2,280.00 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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