hassium

hassium definition - medical

has·si·um (häˈsē-əm)

noun Symbol Hs
A radioactive synthetic element whose longest-lived isotopes have mass numbers of 264 and 265 with half-lives of 0.08 millisecond and 2 milliseconds. Atomic number 108.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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