#elemental images

Elemental arsenic side by side with ultrapure metallic arsenic under argon.

Sources:12

A vial containing ultrapure helium gas. Like other gases, an electric current can make the usually colorless helium glow.

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Images of the element technetium as well as the metal’s crystal structure, hexagonal close packed. 

Sources:Left,right

High purity yttrium.

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Ampoule of rubidium.

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Pure nickel button, obtained by electrolysis, about 20 grams.

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17 grams of ultrapure holmium next to the element’s preferred crystal structure, hexagonal close-packed.

Sources:Holmium,Structure

Black amorphous selenium side by side with powered red amorphous selenium.

Sources:12 

A 1 mm disc of californium next to the crystal structure of its most stable form at ambient conditions, double-hexagonal close packed.

Sources:Californium,Structure

Pure liquid bromine.

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Ultrapure metallic antimony and crystals of the same element surrounding the crystal structure of its stable allotrope, rhombohedral.

Images:Antimony,Structure