Coils of magnesium ribbon showing their appearance when fresh (right) and tarnished (left). Magnesium is an alkaline earth metal, with atomic number 1
RMID:Image ID:2ACYWY8
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Science Photo Library / Alamy Stock PhotoImage ID:
2ACYWY8File size:
54.6 MB (305.9 KB Compressed download)Releases:
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4370 x 4370 px | 37 x 37 cm | 14.6 x 14.6 inches | 300dpiDate taken:
11 December 2014Photographer:
Science Photo LibraryMore information:
Coils of magnesium ribbon showing their appearance when fresh (right) and tarnished (left). Magnesium is an alkaline earth metal, with atomic number 12 and symbol Mg. It has a bright, lustrous appearance that dulls in air as it tarnishes with the formation of a layer of magnesium oxide, a process called passivation. When heated in air it burns with a brilliant white flame, a property that has been exploited in its use in flares and flash bulbs.