- actinoids
- n. any of a series of radioactive chemical elements with atomic numbers 89 through 103 adj. having a radial form; star-shaped; radiated
English contemporary dictionary. 2014.
English contemporary dictionary. 2014.
actinoids — aktinoidai statusas T sritis chemija apibrėžtis Cheminių elementų grupė nuo Ac iki Lr. atitikmenys: angl. actinides; actinoids rus. актиниды; актиноиды … Chemijos terminų aiškinamasis žodynas
Actinoid — The actinoid (according to current IUPAC terminology; previously actinide) series encompasses the 15 chemical elements that lie between actinium and lawrencium included on the periodic table, with atomic numbers 89 103. [… … Wikipedia
transuranium element — Any of the chemical elements after uranium in the periodic table (with atomic numbers greater than 92). All are radioactive (see radioactivity), with half lives ranging from tens of millions of years to fractions of a millisecond. Only two,… … Universalium
Lanthanoid — The lanthanoid (according to IUPAC terminology) (previously lanthanide) series comprises the 15 elements with atomic numbers 57 through 71, from lanthanum to lutetium. [ [http://www.iupac.org/reports/periodic table IUPAC Periodic Table] ] [ [http … Wikipedia
Nobelium — mendelevium ← nobelium → lawrencium Yb ↑ No ↓ (Upb) … Wikipedia
Periodic table — This article is about the periodic table of the elements . For other uses, see The Periodic Table. The periodic table of the chemical elements (also known as the periodic table or periodic table of the elements) is a tabular display of the 118… … Wikipedia
Persistent carbene — A stable carbene: isolated 1,3 dimesitylimidazol 2 ylidene in a Schlenk flask (stir bar also present). A persistent carbene (also known as stable carbene or Arduengo carbene) is a type of carbene demonstrating particular stability. The best known … Wikipedia
Collective names of groups of like elements — is the term used by IUPAC to describe nomenclature for categorization of chemical elements.[1] The following names are approved by IUPAC: Alkali metals The metals of group 1: Li, Na, K, Rb, Cs, Fr. Alkaline earth metals The metals of group 2: Be … Wikipedia
transition element — Chem. any element in any of the series of elements with atomic numbers 21 29, 39 47, 57 79, and 89 107, that in a given inner orbital has less than a full quota of electrons. Also called transition metal. [1920 25] * * * Any chemical element with … Universalium
Portal:Chemistry — Wikipedia portals: Culture Geography Health History Mathematics Natural sciences People Philosophy Religion Society Technology … Wikipedia