Credit: SCIENCE PHOTO LIBRARY MOTION

Caption: Sample of the element calcium (Ca) rotating. Calcium has the atomic number 20, and is a soft, reactive alkaline earth metal. Due to its reactivity it tarnishes rapidly on exposure to atmospheric moisture and oxygen. The dark grey colour of this sample is a layer of oxidised metal. It burns with a bright orange-red flame when heated in air. It has a melting point of 842 degrees Celsius. Its ions are vital for cellular function and its compounds are a major structural component of bones, shells and other animal structures.

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Keywords: alkaline earth metal, alkaline earth metals, ca, calcium, chemical, chemistry, chrome background, cut out, cut outs, cut-out, cut-outs, cutout, cutouts, education, educational, element, elemental, group 2, materials science, metal, metallic, metallurgy, mineralogy, sample, samples, specimen, specimens, still-life, studio shot

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Calcium

K003/3943 Rights Managed

Downloadable master

Duration: 00:00:12.15

Frame size: 1920x1080

Frame rate: 25

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 524.6M

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Capture format: DSLR - AVCHD

Codec: Photo - JPEG

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