| slovo | definícia |
mendelevium
(encz) | mendelevium,mendělejevium n: Zdeněk Brož |
mendelevium
(encz) | mendelevium,mendělevium n: Zdeněk Brož |
mendelevium
(gcide) | mendelevium \men*de*le"vi*um\ (m[e^]n*d[e^]*l[=e]"v[=e]*[u^]/m),
a. [From Dmitri Mendeleyev, discoverer of the periodic law.]
(Chem.)
an unstable radioactive element discovered in 1955 and
produced artificially only in very small quantities; symbol
Md (also Mv). It is a transuranic element with atomic number
101. Isotopes 255, 256, 257, and 258 have been prepared.
Md258, the longest-lived, has a half-life of two months.
--HCP61
[PJC] |
mendelevium
(wn) | mendelevium
n 1: a radioactive transuranic element synthesized by bombarding
einsteinium with alpha particles (Md is the current symbol
for mendelevium but Mv was formerly the symbol) [syn:
mendelevium, Md, Mv, atomic number 101] |
mendelevium
(elements) | mendelevium
Symbol: Md
Atomic number: 101
Atomic weight: (256)
Radioactive metallic transuranic element. Belongs to the actinoid
series.
Only known isotope, Md-256 has a half-life of 1.3 hours. First
identified
by Glenn T. Seaborg, Albert Ghiorso and associates in 1955. Alternative
name unnilunium has been proposed. Named after the 'inventor' of the
periodic table, Dmitri Mendeleev.
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