Matches in DBpedia 2016-04 for { <http://wikidata.dbpedia.org/resource/Q550394> ?p ?o }
Showing triples 1 to 48 of
48
with 100 triples per page.
- Q550394 subject Q7348521.
- Q550394 subject Q8556516.
- Q550394 subject Q8597501.
- Q550394 abstract "Promethium (Pm) has no stable isotopes, and does not exist in nature, except in trace quantities as a product of spontaneous fission and alpha decay of 151Eu. It is a synthetic element, first produced in 1945. Thirty-eight radioisotopes have been characterized, with the most stable being 145Pm with a half-life of 17.7 years, 146Pm with a half-life of 5.53 years, and 147Pm with a half-life of 2.6234 years. All of the remaining radioactive isotopes have half-lives that are less than 365 days, and the majority of these have half-lives that are less than 30 seconds. This element also has 18 meta states with the most stable being 148mPm (t1/2 41.29 days), 152m2Pm (t1/2 13.8 minutes) and 152mPm (t1/2 7.52 minutes).The isotopes of promethium range in atomic weight from 125.95752 u (126Pm) to 162.95368 u (163Pm). The primary decay mode before the longest-lived isotope, 145Pm, is electron capture, and the primary mode after is beta decay. The primary decay products before 145Pm are isotopes of neodymium and the primary products after are isotopes of samarium.Since promethium does not exist in nature, a relative atomic mass cannot be given.".
- Q550394 wikiPageExternalLink nudat2.
- Q550394 wikiPageExternalLink pdf.
- Q550394 wikiPageExternalLink atomic-weights_revised05.html.
- Q550394 wikiPageExternalLink pdf.
- Q550394 wikiPageExternalLink Nubase2003.pdf.
- Q550394 wikiPageWikiLink Q103531.
- Q550394 wikiPageWikiLink Q1054.
- Q550394 wikiPageWikiLink Q1094166.
- Q550394 wikiPageWikiLink Q109910.
- Q550394 wikiPageWikiLink Q1134929.
- Q550394 wikiPageWikiLink Q11448.
- Q550394 wikiPageWikiLink Q1388.
- Q550394 wikiPageWikiLink Q146682.
- Q550394 wikiPageWikiLink Q16821319.
- Q550394 wikiPageWikiLink Q179856.
- Q550394 wikiPageWikiLink Q1809.
- Q550394 wikiPageWikiLink Q191637.
- Q550394 wikiPageWikiLink Q192900.
- Q550394 wikiPageWikiLink Q206451.
- Q550394 wikiPageWikiLink Q208382.
- Q550394 wikiPageWikiLink Q2294.
- Q550394 wikiPageWikiLink Q2348.
- Q550394 wikiPageWikiLink Q2425378.
- Q550394 wikiPageWikiLink Q2623868.
- Q550394 wikiPageWikiLink Q275816.
- Q550394 wikiPageWikiLink Q305208.
- Q550394 wikiPageWikiLink Q306786.
- Q550394 wikiPageWikiLink Q41377.
- Q550394 wikiPageWikiLink Q47270.
- Q550394 wikiPageWikiLink Q483261.
- Q550394 wikiPageWikiLink Q549744.
- Q550394 wikiPageWikiLink Q549767.
- Q550394 wikiPageWikiLink Q549792.
- Q550394 wikiPageWikiLink Q585777.
- Q550394 wikiPageWikiLink Q7348521.
- Q550394 wikiPageWikiLink Q80877.
- Q550394 wikiPageWikiLink Q846110.
- Q550394 wikiPageWikiLink Q8556516.
- Q550394 wikiPageWikiLink Q8597501.
- Q550394 wikiPageWikiLink Q902157.
- Q550394 wikiPageWikiLink Q904273.
- Q550394 wikiPageWikiLink Q954828.
- Q550394 comment "Promethium (Pm) has no stable isotopes, and does not exist in nature, except in trace quantities as a product of spontaneous fission and alpha decay of 151Eu. It is a synthetic element, first produced in 1945. Thirty-eight radioisotopes have been characterized, with the most stable being 145Pm with a half-life of 17.7 years, 146Pm with a half-life of 5.53 years, and 147Pm with a half-life of 2.6234 years.".
- Q550394 label "Isotopes of promethium".