Idézetek
found for many of mercury’s uses, in measurement instruments, valves, switches and dental amalgams. However, other applications such as in energy-saving compact fluorescent bulbs are increasing demand for the element.
Chromium was discovered in 1798 by French chemist Louis-Nicolas Vauquelin, who ground up precious stones in an effort to explain their colours, and later discovered the element beryllium in the same way
Chromium alloyed with iron makes stainless steel, which does not oxidize or rust.
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