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Technetium

☒

Lanthanum

☒

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Technetium

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Lanthanum

Physical Properties of Technetium and Lanthanum

Technetium Metal

Technetium

Lanthanum Metal

Lanthanum

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Physical

Melting Point

Boiling Point

Physical State

Color

Luster

Mohs Hardness

Brinell Hardness

Vickers Hardness

Speed of Sound

Refractive Index

Reflectivity

Allotropes

α Allotropes

β Allotropes

γ Allotropes

2,200.00 °C

4,877.00 °C

Solid

Shiny Gray

-

2.25

550.00 MPa

500.00 MPa

16,200.00 m/s

1.90

35.00 %

✔✘

-

-

-

920.00 °C

3,469.00 °C

Solid

Silvery White

-

2.50

350.00 MPa

360.00 MPa

2,475.00 m/s

1.80

70.00 %

✔✘

-

-

-

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Technetium Metal

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Seaborgium Electron Configuration

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