Important mineral resources – and what they can do
Coal, aluminium, cobalt, nickel, copper, zinc by genus/group, description, occurrence, examples of use and good to know.
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Scientists Discovered Promethium in 1945. They Only Just Learned What It Actually Does.
Although the Periodic Table of Elements is an impressive achievement of human understanding ... First discovered 80 years ago in 1945, Promethium is a lanthanide (one of a series of 15 metallic ...