Magnesium ribbon (left) and calcium nuggets (right) on watch glasses. Both are alkaline earth metal elements from group 2 of the periodic table. Both are vital for cellular function. Magnesium (Mg) is a reactive metal that burns fiercely when heated in air. Here, it is seen in its untarnished form. Calcium (Ca) is a shiny, silvery-white metal that tarnishes on exposure to the air, as seen here. In elemental form, it is a soft reactive metal that burns with a bright orange-red flame when heated in air. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Bildgröße: | 4370 px × 4370 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |