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Translations for „promethium“ in the Russian » English Dictionary (Go to English » Russian)

проме́тий

promethium

Monolingual examples (not verified by PONS Editors)

English

There are two possible sources for natural promethium: rare decays of natural europium-151 (producing promethium-147), and uranium (various isotopes). en.wikipedia.org

In the periodic table, it is located to the right of the actinide uranium, to the left of the actinide plutonium and below the lanthanide promethium. en.wikipedia.org

Promethium-147 is produced in large quantities (compared to other isotopes) by bombarding uranium-235 with thermal neutrons. en.wikipedia.org

Promethium is one of the two elements that do not have stable (non-radioactive) isotopes and are followed by (i.e. with higher atomic number) stable elements. en.wikipedia.org

If a promethium leak is found, the area should be identified as hazardous and evacuated, and emergency services must be contacted. en.wikipedia.org

Another way to produce promethium-147 is via neodymium-147, which decays to promethium-147 with a short half-life. en.wikipedia.org

Where indefinite self-luminosity in darkness was required, safer radioactive promethium paint was initially used, later replaced by tritium which continues to be used today. en.wikipedia.org

Interactions with tiny quantities of promethium-147 are not hazardous if certain precautions are observed. en.wikipedia.org

Compared to the lanthanides, which (except for promethium) are found in nature in appreciable quantities, most actinides are rare. en.wikipedia.org

Many properties of promethium rely on its position among lanthanides and are intermediate between those of neodymium and samarium. en.wikipedia.org

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