Promethium By Joe C
● Metal 61 ● Lanthanide Pm ● State at room temperature is solid ● Light green or 145 Teal/Turquoise ● Melting point - 1,907ºF ● Boiling point - 5,432ºF
Info Discovered by Jacob A. Marinsky, Lawrence E. Glendenin ● and Charles D. Coryell in 1945. Discovered in the Clinton Laboratories ● Named after Prometheus a greek mythological character who ● stole fire from the gods and gave it to the humans. Obtained by separation and analysis of the fission ● products of uranium fuel irradiated in a graphite reactor. (Artificial)
Properties Physical Chemical Density of solids: 7264 Radioactive ● ● kg m ‑ 3 turqoise/teal when ● liquid
More Info Used for research, luminous paints, nuclear batteries for guided missiles, watches, pacemakers and rado's, watches, and light sources for signals.
solid Liquid
Sources ● http://www.lenntech. com/periodic/elements/pm.htm ● http://www.britannica. com/science/promethium ● http://www.rsc.org/periodic- table/element/61/promethium
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