'''錒'''者，化學元素也。符號Ac，原子序八十九，色銀白、有暗 蓝藍光<ref>{{cite web |url=http://pubs.acs.org/cen/80th/actinium.html |title=C&EN: It's Elemental: The Periodic Table - Actinium |author=Wall, Greg |date=2003-09-08 |work=C&EN: It's Elemental: The Periodic Table |publisher=Chemical and Engineering News |accessdate=2013-12-16}}</ref>，屬錒系，遇氧、水漸啞，具放射性，中子射鐳——二二六可得錒，藏於[[鈾]]礦石中，歷二十壹年[[半化]]。 壹一八九九年，法國人安德烈-路易·德貝爾恩得錒，名之{{按|actinium}}。<ref>{{cite webbook|title=Sur un nouvelle matière radio-active|first=André-Louis|last=Debierne|web=Comptes rendus|volume=129|pages=593–595|year=1899|url=http://gallica.bnf.fr/ark:/12148/bpt6k3085b/f593.table|accessdate=2013-12-16}}</ref><ref>{{cite webbook|title=Sur un nouvelle matière radio-actif – l'actinium|first=André-Louis|last=Debierne|web=Comptes rendus|volume=130|pages=906–908|year=1900–1901|url=http://gallica.bnf.fr/ark:/12148/bpt6k3086n/f906.table|accessdate=2013-12-16}}</ref> 壹一九〇二年德國人弗裡德裏希·奧斯卡·吉塞爾名之{{按|emanium}}。<ref>{{cite web|title=Ueber Radium und radioactive Stoffe|first=Friedrich Oskar|last=Giesel|web=Berichte der Deutschen Chemische Geselschaft|volume=35|issue=3|pages=3608–3611|year=1902|doi=10.1002/cber.190203503187}}</ref><ref>{{cite web|title=Ueber den Emanationskörper (Emanium)|first=Friedrich Oskar|last=Giesel|web=Berichte der Deutschen Chemische Geselschaft|volume=37|issue=2|pages=1696–1699|year=1904|doi=10.1002/cber.19040370280}}</ref>後人正名之{{按|actinium}}。<ref>{{cite web|title=Ueber Emanium|first=Friedrich Oskar|last=Giesel|web=Berichte der Deutschen Chemische Geselschaft|volume=37|issue=2|pages=1696–1699|year=1904|doi=10.1002/cber.19040370280}}</ref><ref>{{cite web|title=Ueber Emanium|first=Friedrich Oskar|last=Giesel|web=Berichte der Deutschen Chemische Geselschaft|volume=38|issue=1|pages=775–778|year=1905|doi=10.1002/cber.190503801130}}</ref>化合物稀，有三氟化錒（AcF<sub>3</sub>）、三氯化錒（AcCl<sub>3</sub>）、三臭化錒（AcBr<sub>3</sub>）、氟氧化錒（AcOF）、氯氧化錒（AcOCl）、臭氧化錒（AcOBr）、三硫化二錒（Ac<sub>2</sub>S<sub>3</sub>）、氧化錒（Ac<sub>2</sub>O<sub>3</sub>）和磷酸錒（AcPO<sub>4</sub>）之類。有同位素三十六，皆具放射性。<ref name="nubas">{{cite web|last=Audi|first=Georges|title=The NUBASE Evaluation of Nuclear and Decay Properties|web=Nuclear Physics A|volume=729|pages=3–128|publisher=Atomic Mass Data Center|year=2003|doi=10.1016/j.nuclphysa.2003.11.001|bibcode=2003NuPhA.729....3A|last2=Bersillon|first2=O.|last3=Blachot|first3=J.|last4=Wapstra|first4=A.H.}}</ref> ▼[[檔案:Actinium.jpg|縮圖|236x236像素|錒]]
▲'''錒'''者，化學元素也。符號Ac，原子序八十九，色銀白、有暗蓝光<ref>{{cite web |url=http://pubs.acs.org/cen/80th/actinium.html |title=C&EN: It's Elemental: The Periodic Table - Actinium |author=Wall, Greg |date=2003-09-08 |work=C&EN: It's Elemental: The Periodic Table |publisher=Chemical and Engineering News |accessdate=2013-12-16}}</ref>，屬錒系，遇氧、水漸啞，具放射性，中子射鐳——二二六可得錒，藏於[[鈾]]礦石中，歷二十壹年[[半化]]。壹八九九年，法國人安德烈-路易·德貝爾恩得錒，名之{{按|actinium}}。<ref>{{cite web|title=Sur un nouvelle matière radio-active|first=André-Louis|last=Debierne|web=Comptes rendus|volume=129|pages=593–595|year=1899|url=http://gallica.bnf.fr/ark:/12148/bpt6k3085b/f593.table|accessdate=2013-12-16}}</ref><ref>{{cite web|title=Sur un nouvelle matière radio-actif – l'actinium|first=André-Louis|last=Debierne|web=Comptes rendus|volume=130|pages=906–908|year=1900–1901|url=http://gallica.bnf.fr/ark:/12148/bpt6k3086n/f906.table|accessdate=2013-12-16}}</ref>壹九〇二年德國人弗裡德裏希·奧斯卡·吉塞爾名之{{按|emanium}}。<ref>{{cite web|title=Ueber Radium und radioactive Stoffe|first=Friedrich Oskar|last=Giesel|web=Berichte der Deutschen Chemische Geselschaft|volume=35|issue=3|pages=3608–3611|year=1902|doi=10.1002/cber.190203503187}}</ref><ref>{{cite web|title=Ueber den Emanationskörper (Emanium)|first=Friedrich Oskar|last=Giesel|web=Berichte der Deutschen Chemische Geselschaft|volume=37|issue=2|pages=1696–1699|year=1904|doi=10.1002/cber.19040370280}}</ref>後人正名之{{按|actinium}}。<ref>{{cite web|title=Ueber Emanium|first=Friedrich Oskar|last=Giesel|web=Berichte der Deutschen Chemische Geselschaft|volume=37|issue=2|pages=1696–1699|year=1904|doi=10.1002/cber.19040370280}}</ref><ref>{{cite web|title=Ueber Emanium|first=Friedrich Oskar|last=Giesel|web=Berichte der Deutschen Chemische Geselschaft|volume=38|issue=1|pages=775–778|year=1905|doi=10.1002/cber.190503801130}}</ref>化合物稀，有三氟化錒（AcF<sub>3</sub>）、三氯化錒（AcCl<sub>3</sub>）、三臭化錒（AcBr<sub>3</sub>）、氟氧化錒（AcOF）、氯氧化錒（AcOCl）、臭氧化錒（AcOBr）、三硫化二錒（Ac<sub>2</sub>S<sub>3</sub>）、氧化錒（Ac<sub>2</sub>O<sub>3</sub>）和磷酸錒（AcPO<sub>4</sub>）之類。有同位素三十六，皆具放射性。<ref name="nubas">{{cite web|last=Audi|first=Georges|title=The NUBASE Evaluation of Nuclear and Decay Properties|web=Nuclear Physics A|volume=729|pages=3–128|publisher=Atomic Mass Data Center|year=2003|doi=10.1016/j.nuclphysa.2003.11.001|bibcode=2003NuPhA.729....3A|last2=Bersillon|first2=O.|last3=Blachot|first3=J.|last4=Wapstra|first4=A.H.}}</ref>
[[檔案:Uraninite-39029.jpg|縮圖|236x236像素|瀝青鈾礦中有微錒]]
== 應用 ==
因其強放射性，可用航天器、高效中子源，其活度高于於[[鎇|鋂]]﹣鈹与與鐳﹣鈹中子源。<ref name="b1">Russell, Alan M. and Lee, Kok Loong [http://books.google.com/books?id=fIu58uZTE-gC&pg=PA470 Structure-property relations in nonferrous metals], Wiley, 2005, [//zh.wikipedia.org/wiki/Special:BookSources/9780471649526 ISBN 978-0-471-64952-6], pp. 470–471</ref>
在醫學可造<sup>213</sup>[[鉍]]，<ref name="sep">{{cite web|doi=10.1016/j.apradiso.2004.12.003|year=2005|volume=62|issue=5|pages=667–679|title=Production of actinium-225 for alpha particle mediated radioimmunotherapy|last=Bolla|first=Rose A.|web=Applied Radiation and Isotopes|pmid=15763472|last2=Malkemus|first2=D|last3=Mirzadeh|first3=S}}</ref>或作放療。然，其可累积積骨肝中，留數十年。<ref>{{cite web|last1=McDevitt|first1=Michael R.|last2=Ma|first2=Dangshe|last3=Lai|first3=Lawrence T.|last4=Simon|first4=Jim|last5=Borchardt|first5=Paul|last6=Frank|first6=R. Keith|last7=Wu|first7=Karen|last8=Pellegrini|first8=Virginia|last9=Curcio|first9=Michael J.|last10=Miederer|first10=Matthias|last11=Bander|first11=Neil H.|last12=Scheinberg|first12=David A.|displayauthors=3|title=Tumor Therapy with Targeted Atomic Nanogenerators|year=2001|web=Science|volume=294|issue=5546|pages=1537–1540|doi=10.1126/science.1064126|bibcode=2001Sci...294.1537M|pmid=11711678|url=http://www.studybusiness.com/HTML/Bio/10021/10021-04-2003-BIO-04-E.pdf}}</ref><ref>{{cite web|url=http://cancerres.aacrwebs.org/content/63/16/5084.full.pdf|title=Targeted Actinium-225 in Vivo Generators for Therapy of Ovarian Cancer|author=Borchardt, Paul E. et al.|web=Cancer Research|volume=63|issue=16|pages=5084–5090|year=2003|pmid=12941838}} 引文格式1維護：顯式使用等標簽 ([//zh.wikipedia.org/wiki/Category:引文格式1維護：顯式使用等標簽 link]){{cite web|url=http://cancerres.aacrwebs.org/content/63/16/5084.full.pdf|title=Targeted Actinium-225 in Vivo Generators for Therapy of Ovarian Cancer|author=Borchardt, Paul E. et al.|web=Cancer Research|volume=63|issue=16|pages=5084–5090|year=2003|pmid=12941838}}</ref><ref>{{cite web|author=Ballangrud, A. M. ''et al.''|title=Alpha-particle emitting atomic generator (Actinium-225)-labeled trastuzumab (herceptin) targeting of breast cancer spheroids: efficacy versus HER2/neu expression|web=Clinical cancer research : an official web of the American Association for Cancer Research|volume=10|issue=13|pages=4489–97|year=2004|pmid=15240541|doi=10.1158/1078-0432.CCR-03-0800}} 引文格式1維護：顯式使用等標簽 ([//zh.wikipedia.org/wiki/Category:引文格式1維護：顯式使用等標簽 link]){{cite web|author=Ballangrud, A. M. ''et al.''|title=Alpha-particle emitting atomic generator (Actinium-225)-labeled trastuzumab (herceptin) targeting of breast cancer spheroids: efficacy versus HER2/neu expression|web=Clinical cancer research : an official web of the American Association for Cancer Research|volume=10|issue=13|pages=4489–97|year=2004|pmid=15240541|doi=10.1158/1078-0432.CCR-03-0800}}</ref>
{{Commons|actinium|錒}}
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