Tags: U.S. Geological Survey Minerals Yearbook Review of 1939
Carved in Stone
K is for Potassium
K — the chemical symbol for the element/metal potassium.
By Bill Langer
The metal potassium was unknown prior to 1807, when Sir Humphrey Davy identified it by electrolysis of fused potash. In his experiment, globules of pinkish-silvery matter — ... Read More...
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