Hilingon an source kan Aktinyo

[[Ladawan:Actinium sample (31481701837).png|thumb|Sampol nin Aktinyo-225]]
An '''aktinyo''' ([[Ingles]]: ''actinium'') iyo sarong [[elementong kimikal]] na may simbolong&nbsp;'''Ac''' asin atomikong bilang na 89. Ini iyo enot na naisuway ni [[Friedrich Oskar Giesel]] kaidtong 1902, na pigtawan ining ngaran na ''emanium''; an elemento nakua an ngaran kaini sa salang pagbisto sa substansyang nahanap ni [[André-Louis Debierne]] kaidtong 1899 asin inapod na ''actinium''. 

An aktinyo an ginakanan kan ngaran nin "seryeng aktinido" na sarong grupo nin 15 na magkapararehas na mga elemento sa tahaw kan aktinyo asin [[lorensyo]] sa [[peryodikong tableta]]. Kaiba an [[Polonyo (elemento)|polonyo]], [[Radyo (elemento)|radyo]], asin [[radon]], an aktinyo iyo saro sa mga pinakaenot na dae-primordiyal na radyoaktibong elemento na naisuway.

== Panluwas na takod ==

* [http://www.periodicvideos.com/videos/089.htm Actinium] sa ''The Periodic Table of Videos'' (University of Nottingham)
* [http://toxnet.nlm.nih.gov/cgi-bin/sis/search/r?dbs+hsdb:@term+@na+@rel+actinium,+radioactive NLM Hazardous Substances Databank – Actinium, Radioactive]
* [https://web.archive.org/web/20110825123745/http://radchem.nevada.edu/classes/rdch710/files/actinium.pdf Actinium] sa {{cite book|title=The Chemistry of the Actinide and Transactinide Elements|last1=Kirby|first1=H. W.|last2=Morss|first2=L. R.|date=2006|publisher=Springer|isbn=978-1-4020-3555-5|editor1-last=Morss|edition=3rd|location=Dordrecht, The Netherlands|editor2-last=Edelstein|editor2-first=Norman M.|editor3-last=Fuger|editor3-first=Jean}}
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[[Kategorya:Mga elementong kimikal]]