Making renewable energy reliable and safe
- Zn
- Zinc
- 30
- Zinc is a slightly brittle metal at room temperature and has a blue-silvery appearance when oxidation is removed
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- As
- Arsenic
- 33
- Arsenic occurs in many minerals, usually in combination with sulfur and metals, but also as a pure elemental crystal.
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- Ga
- Gallium
- 31
- Elemental gallium is a soft, silvery blue metal at standard temperature and pressure; however in its liquid state it becomes silvery white.
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