June 1, 2017 AT 9:16 am
All About and Experiments With the Most Precious Metal on Earth: Platinum!
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So, today I want to tell you about the most precious metal on Earth – platinum.
In the periodic table of chemical elements, platinum is located in the 10th group and is also a part of the so-called platinum group of precious and rare metals.
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1 Comment
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I saw The video that Linor did with Paul Horowitz.
It was posted on QRZ.
I am impressed.
Congratulations to Linor on your award from CQ.
73
Dennis