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Potassium

☒

Technetium

☒

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Potassium

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Technetium

Physical Properties of Potassium and Technetium

Potassium Metal

Potassium

Technetium Metal

Technetium

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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

63.65 °C

774.00 °C

Solid

Silvery Gray

-

0.40

0.36 MPa

100.00 MPa

2,000.00 m/s

1.33

72.00 %

✔✘

-

-

-

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 %

✔✘

-

-

-

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Technetium Metal

Titanium Metal

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Technetium vs Neodymium

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