actinide

ac·ti·nide

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 structure

Origin of actinide

from actin(ium) + -ide

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"actinide." YourDictionary, n.d. Web. 05 December 2018. <https://www.yourdictionary.com/actinide>.

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actinide. (n.d.). Retrieved December 05th, 2018, from https://www.yourdictionary.com/actinide

actinide

noun

Any of a series of chemically similar, radioactive elements with atomic numbers ranging from 89 (actinium) through 103 (lawrencium). Also called actinoid .

Origin of actinide

actin(ium) -ide

THE AMERICAN HERITAGE® DICTIONARY OF THE ENGLISH LANGUAGE, FIFTH EDITION by the Editors of the American Heritage Dictionaries. Copyright © 2016, 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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"actinide." YourDictionary, n.d. Web. 05 December 2018. <https://www.yourdictionary.com/actinide>.

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actinide. (n.d.). Retrieved December 05th, 2018, from https://www.yourdictionary.com/actinide

Any of a series of chemically similar metallic elements with atomic numbers ranging from 89 (actinium) to 103 (lawrencium). All of these elements are radioactive, and two of the elements, uranium and plutonium, are used to generate nuclear energy.

See Periodic Table

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MLA Style

"actinide." YourDictionary, n.d. Web. 05 December 2018. <https://www.yourdictionary.com/actinide>.

APA Style

actinide. (n.d.). Retrieved December 05th, 2018, from https://www.yourdictionary.com/actinide

Noun

(plural actinides)

(inorganic chemistry) Any of the 14 radioactive elements of the periodic table that are positioned under the lanthanides to which they have similar chemistry.

Origin

actin- +‎ -ide

English Wiktionary. Available under CC-BY-SA license.

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MLA Style

"actinide." YourDictionary, n.d. Web. 05 December 2018. <https://www.yourdictionary.com/actinide>.

APA Style

actinide. (n.d.). Retrieved December 05th, 2018, from https://www.yourdictionary.com/actinide

actinide

actinide

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actinide

actinide

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