hahnium

(ˈhɑːnɪəm) n (Elements & Compounds) a name once advanced by the American Chemical Society for dubnium[C20: named after Otto Hahn]

un•nil•pen•ti•um

(ˌyu nɪlˈpɛn ti əm)

n. provisional name for the transuranic element with atomic number 105. Symbol: Unp Also called hahnium. [1975–80; < Latin ūn(us) one + nīl nothing + Greek pént(e) five + New Latin -ium -ium²]

hah·ni·um

(hä′nē-əm) An earlier name for dubnium.

Thesaurus

Noun

hahnium - a transuranic elementatomic number 105, Db, dubnium, element 105chemical element, element - any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter

Translations

hahnium

(hän`ēəm), symbol Ha, former suggested name for both element 105, now called dubniumdubnium
, artificially produced radioactive chemical element; symbol Db; at. no. 105; mass number of most stable isotope 268; m.p., b.p., and sp. gr. unknown; valence +5.
..... Click the link for more information. , and element 108, now called hassiumhassium
, 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. Situated in Group 8 of the periodic table, it is expected to have properties similar to those of osmium.
..... Click the link for more information. .

hahnium

[′hän·ē·əm] (chemistry) The name suggested by workers in the United States for element 105. Symbolized Ha.

hahnium

a name once advanced by the American Chemical Society for a transuranic element, artificially produced from californium, atomic no.: 105; half-life of most stable isotope, ²⁶²Ha: 40 seconds

hahnium

hahnium

un•nil•pen•ti•um

hah·ni·um

hahnium

hahnium

hahnium

hahnium

hahnium

Synonyms for hahnium

noun a transuranic element

Synonyms

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