An actinido in naglalakip han 15 nga puthawon nga elemento kimikal nga may ihap atomica tikang 89 kutob 103 tikang actinium pakadto ha lawrencium.[1][2][3][4]

Pinanbasaran igliwat

  1. Theodore Gray (2009). The Elements: A Visual Exploration of Every Known Atom in the Universe. New York: Black Dog & Leventhal Publishers. p. 240. ISBN 978-1-57912-814-2. https://archive.org/details/elementsvisualex0000gray. 
  2. Actinide element, Encyclopædia Britannica on-line
  3. Although "actinoid" (rather than "actinide") means "actinium-like" and therefore should exclude actinium, that element is usually included in the series.
  4. Neil G. Connelly et al. (2005). "Elements". Nomenclature of Inorganic Chemistry. London: Royal Society of Chemistry. p. 52. ISBN 0-85404-438-8. http://books.google.com/books?id=w1Kf1CakyZIC&pg=PA52.