Grupp 4-element
Grupp 4-element kallas gruppen av grundämnen i periodiska systemet som omfattar följande ämnen:
Bildgalleri
Titan Crystal Bar, 99,995 %
Zirkonium Crystal Bar, 99,97 %
Hafnium Crystal Bar, > 99,9 %
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Media som används på denna webbplats
Hf-crystal bar.jpg
Författare/Upphovsman: Alchemist-hp (talk) (www.pse-mendelejew.de), Licens: CC BY-SA 3.0 de
A sample of a 1,7kg Hafnium crystal bar, made by van Arkel-de Boer process. The real background is removed. The shadow is added via Photoshop.
Författare/Upphovsman: Alchemist-hp (talk) (www.pse-mendelejew.de), Licens: CC BY-SA 3.0 de
A sample of a 1,7kg Hafnium crystal bar, made by van Arkel-de Boer process. The real background is removed. The shadow is added via Photoshop.
Titan-crystal bar.JPG
Författare/Upphovsman: Alchemist-hp (pse-mendelejew.de), Licens: CC BY-SA 3.0
A titanium crystal bar, high purity 99,995 %, made by the iodide process at URALREDMET in the Soviet era. Weight ≈283 g, ≈5.5 " long, ≈1 " diameter
Författare/Upphovsman: Alchemist-hp (pse-mendelejew.de), Licens: CC BY-SA 3.0
A titanium crystal bar, high purity 99,995 %, made by the iodide process at URALREDMET in the Soviet era. Weight ≈283 g, ≈5.5 " long, ≈1 " diameter
Zr-crystal-bar.jpg
Författare/Upphovsman: Alchemist-hp (talk) (www.pse-mendelejew.de), Licens: CC BY-SA 3.0 de
purest Zirconium 99.97%, crystal bar, made by crystal bar process
Författare/Upphovsman: Alchemist-hp (talk) (www.pse-mendelejew.de), Licens: CC BY-SA 3.0 de
purest Zirconium 99.97%, crystal bar, made by crystal bar process
Asterisks two.svg
Författare/Upphovsman: DePiep, Licens: CC BY-SA 3.0
Two asterisks, in a series with same canvas size
Författare/Upphovsman: DePiep, Licens: CC BY-SA 3.0
Two asterisks, in a series with same canvas size
Asterisks one.svg
Författare/Upphovsman: DePiep, Licens: CC BY-SA 3.0
Single asterisk, in a series with same canvas size
Författare/Upphovsman: DePiep, Licens: CC BY-SA 3.0
Single asterisk, in a series with same canvas size