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hassium

Pronunciation: hahs'e-um

Definition: An artificial transplutonium element; atomic number 108; atomic weight 265. [Formerly called Unniloctium, Uno; and Hahnium, after German physicist O. Hahn.]

[Hesse, German state, where it was first created, + -ium]

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.

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