2 Comments

1. V. Kurt Bellman on July 18, 2019 at 3:09 PM

   I’ll only quibble over one line – the first. I don’t think you mean the 3rd most common element. I’ll buy that it’s the 3rd most common metal, but… Offhand, I’m thinking hydrogen, oxygen, carbon, and silicon easily have copper beaten.

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   • scott on July 18, 2019 at 3:53 PM

     Copper is an element on the periodic table with the atomic number of 29. Its symbol Cu is based on the Latin word for copper: cuprum. Copper is a transition metal meaning that they a strong tendency to form strong coordinating compounds where the result is metallic. Transition metals are never clear and provide color to whatever compound is derived. If you place a Silver Eagle and a 90-percent silver coin side-by-side, you will see a difference. The pure silver will look almost white, even when shined. The 90-percent silver coin will have a little more color depth to its look.

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