Probthium


 * Element Name:** Promethium

**Element Symbol:** Pm

**Atomic mass:** 145

**Atomic number:** 61

**Protons:** 61

**Electrons:** 61

**Discovery:** It wad made in Oak Ridge Natinal Labratory in 1945 by Jacob A. Marinsky, Lawrence E. Glenenin, and Charles D. Coryell by seperation and analysis of fission products of uranium fuel irradiated in the Graphite Reactor

**How was it named:** It was named after a city in the country of Florence

**State of Matter:** Solid

**Melting Point:** 1042°C

**Boiling Point:** 3000°C

**Characteristics:** Highly radioactive, grey, metallic.

**Uses:** Used to make nuclear batteries. These batteries are mainly used for anything. It's a battery that lasts up tp 5 years.

**Interesting facts:** This chemical is metallic and yet it is radioactive. It used to make nuclear batteries which is a sign that it produces energy. Back then, there was no element 61. It was just left blank until it was discovered.

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