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Protactinium

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Rhenium

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Protactinium

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Rhenium

Physical Properties of Protactinium and Rhenium

Protactinium Electron Configuration

Protactinium

Rhenium Metal

Rhenium

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1 Physical

1.1 Melting Point

1,568.00 °C3,180.00 °C

27 3410

1.2 Boiling Point

4,027.00 °C5,627.00 °C

147 5660

1.3 Appearance

1.3.1 Physical State

Solid

Solid

1.3.2 Color

Silver

Silvery Gray

1.3.3 Luster

Metallic

Metallic

1.4 Hardness

1.4.1 Mohs Hardness

NA7.00

0.2 8.5

1.4.2 Brinell Hardness

NA1,320.00 MPa

0.14 3490

1.4.3 Vickers Hardness

NA1,350.00 MPa

121 3430

1.5 Speed of Sound

NA4,700.00 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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