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Yttrium

☒

Tantalum

☒

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Yttrium

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Tantalum

Physical Properties of Yttrium and Tantalum

Yttrium Metal

Yttrium

Tantalum Metal

Tantalum

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1 Physical

1.1 Melting Point

1,523.00 °C2,996.00 °C

27 3410

1.2 Boiling Point

3,337.00 °C5,425.00 °C

147 5660

1.3 Appearance

1.3.1 Physical State

Solid

Solid

1.3.2 Color

Silvery White

Gray Blue

1.3.3 Luster

NA

Metallic

1.4 Hardness

1.4.1 Mohs Hardness

NA6.50

0.2 8.5

1.4.2 Brinell Hardness

589.00 MPa440.00 MPa

0.14 3490

1.4.3 Vickers Hardness

NA870.00 MPa

121 3430

1.5 Speed of Sound

3,300.00 m/s3,400.00 m/s

818 16200

1.6 Optical Properties

1.6.1 Refractive Index

NANA

1.000933 1.7229

1.6.2 Reflectivity

NA78.00 %

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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