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hassium
(Encyclopedia)hassium hăsˈēəm, häsˈ– [key], artificially produced radioactive chemical element; symbol Hs; at. no. 108; mass number of most stable isotope 277; m.p., b.p., sp. gr., and valence unknown. Situ...Hs
(Encyclopedia)Hs, symbol for the element hassium. ...Periodic Table of the Elements: Hassium
(Encyclopedia)Periodic Table of the Elements: Hassium ...Ha
(Encyclopedia)Ha, formerly the suggested symbol for the name hahnium, which was applied variously to two elements, now called dubnium and hassium. ...hahnium
(Encyclopedia)hahnium hänˈēəm [key], symbol Ha, former suggested name for both element 105, now called dubnium, and element 108, now called hassium. ...flerovium
(Encyclopedia)flerovium, artificially produced radioactive chemical element; symbol Fl; at. no. 114; mass number of most stable isotope 289; m.p., b.p., sp. gr., and valence unknown. Situated in Group 14 of the per...transuranium elements
(Encyclopedia)transuranium elements, in chemistry, radioactive elements with atomic numbers greater than that of uranium (at. no. 92). All the transuranium elements of the actinide series were discovered as synthet...Elements (table)
(Encyclopedia)Elements 1 Parentheses indicate most stable isotope; brackets enclose lower and upper bounds of weight variation. ...Browse by Subject
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