Technology, Patent, Process, Consultancy, Report,
- Promethium is a
radioactive chemical element with the symbol Pm and atomic number 61
and It salts has a pink or red colour that colours the surroundings
air with a pale blue-green light.
- Promethium is useful
as a beta source for thickness gauges. It is also used in atomic
batteries for spacecraft and guided missiles.
- Promethium is harmful
due to its radioactivity.
- Promethium has 29
whose half-lives are known, with mass numbers from 130 to 158.
Promethium has no naturally occurring isotopes.
- Its longest lived
isotopes are 145Pm with a half-life of 17.7 years and 147Pm, with a
half-life of 2.6234 years.
- It can be produced as
a product of uranium fission.
- Promethium could be
used to make a nuclear powered battery.
- This type of battery
would use the beta particles emitted by the decay of promethium to
make a phosphor give off light.
- It is belongs to the
lanthanide series. It is produced in nuclear reactors by neutron
bombardment with neodymium-146 and naturally decay to form
- It is also observed in
the spectra of some stars, probably because of the nuclear reactions
which occur in stars.
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