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Atomic symbol Cd
Atomic number 48
Classification Transition metal
Atomic mass 112.4 amu
Other Information
Date of discovery 1817
Name of discoverer Fredrich Stromeyer
Name origin From the Latin cadmia.
Uses Cadmium is a poison. Cadmium is also used in Nickle-Cadmium batteries.
Obtained from Cadmium is a product of Zinc refinement.

Cadmium is a chemical element which occurs naturally on Earth. The scientific symbol for cadmium is Cd and its atomic number is 48. It occurs as a metallic element in the earth's crust and oceans. It was first discovered in Germany in 1817 as a by-product of the zinc refining process. Its name is derived from the Latin cadmia and the Greek kadmeia.[1]


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