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Promethium-147

Promethium-147. Promethium. White-silver metal Never found on Earth’s surface naturally Trace amounts founds in space on certain stars Was predicted in 1902, but was not confirmed until 1945 All known isotopes of this element are radioactive. Promethium-147. Symbol: Pm Atomic number:63

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Promethium-147

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  1. Promethium-147

  2. Promethium • White-silver metal • Never found on Earth’s surface naturally • Trace amounts founds in space on certain stars • Was predicted in 1902, but was not confirmed until 1945 • All known isotopes of this element are radioactive

  3. Promethium-147 • Symbol: Pm • Atomic number:63 • Atomic mass: 147 • Half life: 2.62 years

  4. Usage • thickness measuring devices

  5. Usage • atomic batteries • Used where normal batteries would be too large or heavy to use such as on space probes and satellites

  6. Usage • luminous paints

  7. Usage • Radio luminescence light bulbs

  8. Why is it used? Emits beta rays Generally the only isotope of promethium available Can be used as a source of power Produces power without producing heat

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