April 29 Y is for Yttrium



                                                           YTTRIUM

Yttrium is a chemical element with the symbol Y and the atomic number 39. It also has an atomic weight of 88.9.  It is used in making phosphors and exposure to it can cause lung disease.  It is a soft silver-metallic classed as a transitional metal in the group 3.  It is also listed as a rare earth mineral. Discovered by Johan Gadolin in 1794, it was  first isolated by  Carle Gustav Mosander in 1840.  Named after Ytterby, a Swedish village, near where it was found.

So now you know as much about Yttrium as I do an interesting and important element of the Periodic Table of Elements.

Bye for now,
Lilian.







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