| slovo | definícia |
thulium
(encz) | thulium,thulium n: Zdeněk Brož |
thulium
(czen) | thulium,thuliumn: Zdeněk Brož |
Thulium
(gcide) | Thulium \Thu"li*um\, n. [NL. See Thule.] (Chem.)
A rare metallic element of the lanthanide group having atomic
number 69, and atomic weight 168.93. It is found in the
mineral gadolinite and other minerals, together with other
rare earths.
[1913 Webster + PJC] |
thulium
(wn) | thulium
n 1: a soft silvery metallic element of the rare earth group;
isotope 170 emits X-rays and is used in small portable
X-ray machines; it occurs in monazite and apatite and
xenotime [syn: thulium, Tm, atomic number 69] |
thulium
(elements) | thulium
Symbol: Tm
Atomic number: 69
Atomic weight: 168.934
Soft grey metallic element that belongs to the lanthanoids. One natural
isotope exists, Tm-169, and seventeen artificial isotopes have been
produced. No known uses for the element. Discovered in 1879 by Per
Theodor
Cleve.
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| | podobné slovo | definícia |
Thulium
(gcide) | Thulium \Thu"li*um\, n. [NL. See Thule.] (Chem.)
A rare metallic element of the lanthanide group having atomic
number 69, and atomic weight 168.93. It is found in the
mineral gadolinite and other minerals, together with other
rare earths.
[1913 Webster + PJC] |
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