actinide series

noun
(chemistry) a series of 15 radioactive elements with increasing atomic numbers from actinium to lawrencium
Topics: ↑chemistry, ↑chemical science
Hypernyms: ↑series

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noun
: a series of heavy radioactive metallic elements of increasing atomic number considered to be analogous to the lanthanide series and to begin with actinium (89) or thorium (90) and end with element of atomic number 103 — compare actinium series, periodic table

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Chem.
the series of radioactive elements that starts with actinium and ends with lawrencium.
[1940-45]

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actinide series,
the actinides.

Useful english dictionary. 2012.

Look at other dictionaries:

  • actinide series — Chem. the series of radioactive elements that starts with actinium and ends with lawrencium. [1940 45] * * * …   Universalium

  • actinide series — ac′ti•nide se ries [[t]ˈæk təˌnaɪd[/t]] n. chem. the series of mostly synthetic radioactive elements whose atomic numbers range from 89 (actinium) through 103 (lawrencium) • Etymology: 1940–45 …   From formal English to slang

  • actinide — [ak′tə nīd΄] n. [< ACTIN(IUM) + IDE] any of the elements in the series (actinide series) of radioactive, metallic chemical elements from element 89 (actinium) through element 103 (lawrencium): actinides resemble lanthanides in electronic… …   English World dictionary

  • actinide element — ▪ chemical element group Introduction       any of a series of 15 consecutive chemical elements in the periodic table from actinium to lawrencium (atomic numbers 89–103). As a group they are significant largely because of their radioactivity.… …   Universalium

  • Actinide — The atomic bomb dropped on Nagasaki had a plutonium charge.[1] The actinide or actinoid (IUPAC nomenclature) series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium thro …   Wikipedia

  • Actinide concept — The actinide concept in nuclear chemistry was first theorized by Glenn T. Seaborg in 1944, resulting in the correction of Dmitri Mendeleev s periodic table of the elements by placing a new actinide series below the lanthanide series. In later… …   Wikipedia

  • actinide — n. (also actinoid) Chem. any of the series of 15 radioactive elements having increasing atomic numbers from actinium to lawrencium. Phrases and idioms: actinide series this series of elements. Etymology: ACTINIUM + IDE as in lanthanide …   Useful english dictionary

  • actinide — /ak teuh nuyd /, n. Chem. any element of the actinide series. [1940 45; ACTIN + IDE, on the model of LANTHANIDE] * * * Any of the series of 15 consecutive chemical elements in the periodic table from actinium to lawrencium (atomic numbers 89–103) …   Universalium

  • actinide — ac•ti•nide [[t]ˈæk təˌnaɪd[/t]] n. chem. any element of the actinide series • Etymology: 1945; actin ( ium) + ide, on the model of lanthanide …   From formal English to slang

  • Actinide — La série chimique des actinides comprend les éléments chimiques du tableau périodique se situant entre l actinium et le lawrencium, possédant donc un numéro atomique entre 89 et 103 inclus. Les actinides sont tous des éléments radioactifs et… …   Wikipédia en Français

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