PROMETHIUM

Promethium is a chemical elemto periódics table has the symbol Pm and atomic number is 61. Although some scientists have claimed to have discovered this element in nature after the observation of certain spectral lines, no one has been able to isolate the element 61 of materials presented in nature. It is produced artificially in nuclear reactors because it is one of the elements resulting from fission of uranium, thorium and plutonium.It comes from Prometheus, mythological character. Friends with mortals and ridiculed Zeus. He killed a bull separating their flesh and bones, and Zeus picked the bones. Enraged, Zeus broke out the fire, so that the Humean could not cooking, heating ... but Amonte Prometheus ascended Olympus and stole a bit of fire.