Element-105
noun, Chemistry, Physics.
1.
.
[hah-nee-uh m] /ˈhɑ ni əm/
noun, Chemistry, Physics.
1.
a proposed name for . Symbol: Ha.
[yoo-nil-pen-tee-uh m] /ˌyu nɪlˈpɛn ti əm/
noun, Chemistry, Physics.
1.
a former name of . Symbol: Unp.
[doob-nee-uh m, duhb-] /ˈdub ni əm, ˈdʌb-/
noun, Chemistry, Physics.
1.
a superheavy, synthetic, radioactive element with a very short half-life. Symbol: Db; atomic number: 105.
/ˈdʌbnɪəm/
noun
1.
a synthetic transactinide element produced in minute quantities by bombarding plutonium with high-energy neon ions. Symbol: Du; atomic no 105 See hahnium
/ˈhɑːnɪəm/
noun
1.
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 Now called dubnium
hahnium hah·ni·um (hä’nē-əm)
n.
Element 105.
dubnium
(db’nē-əm)
Symbol Db
A synthetic, radioactive element that is produced from californium, americium, or berkelium. Its most long-lived isotopes have mass numbers of 258, 261, 262, and 263 with half-lives of 4.2, 1.8. 34, and 30 seconds, respectively. Atomic number 105. See Periodic Table.
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noun, Chemistry, Physics. 1. . [see-bawr-gee-uh m, see-bawr-] /siˈbɔr gi əm, ˈsi bɔr-/ noun, Chemistry, Physics. 1. a superheavy, synthetic, radioactive element with a very short half-life. Symbol: Sg; atomic number: 106. [yoo-nil-hek-see-uh m] /ˌyu nɪlˈhɛk si əm/ noun, Chemistry, Physics. 1. former name of . Symbol: Unh. /ˈsiːbɔːɡɪəm/ noun 1. a synthetic transuranic element, […]
- Element-107
noun, Chemistry, Physics. 1. . [yoo-nil-sep-tee-uh m] /ˌyu nɪlˈsɛp ti əm/ noun, Chemistry, Physics. 1. former name of . Symbol: Uns. [bawr-ee-uh m, bohr-] /ˈbɔr i əm, ˈboʊr-/ noun, Chemistry, Physics. 1. a superheavy, synthetic, radioactive element with a very short half-life. Symbol: Bh; atomic number: 107. /ˈbɔːrɪəm/ noun 1. a transuranic element artificially produced […]
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noun, Chemistry, Physics. 1. . [has-ee-uh m] /ˈhæs i əm/ noun, Chemistry, Physics. 1. a superheavy, synthetic, radioactive element with a very short half-life. Symbol: Hs; atomic number: 108. [yoo-ni-lok-tee-uh m] /ˌyu nɪˈlɒk ti əm/ noun, Chemistry, Physics. 1. former name of . Symbol: Uno. /ˈhæsɪəm/ noun 1. a synthetic element produced in small quantities […]
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noun, Chemistry, Physics. 1. . [mahyt-nur-ee-uh m] /maɪtˈnɜr i əm/ noun, Chemistry, Physics. 1. a superheavy, synthetic, radioactive element. Symbol: Mt; atomic number: 109. [yoo-ni-len-ee-uh m] /ˌyu nɪˈlɛn i əm/ noun, Chemistry, Physics. 1. former name of . Symbol: Une. /ˈmaɪtnɪərɪəm/ noun 1. a synthetic element produced in small quantities by high-energy ion bombardment. Symbol: […]
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noun, Chemistry, Physics. 1. . [uhn-uh-nil-ee-uh m] /ˌʌn əˈnɪl i əm/ noun, Chemistry, Physics. 1. former name of . Symbol: Uun. [dahrm-stat-ee-uh m] /dɑrmˈstæt i əm/ noun, Chemistry, Physics. 1. a superheavy, synthetic, radioactive element with a very short half-life. Symbol: Ds; atomic number: 110. noun a synthetic chemical element, element 110 of the periodic […]