Periodic Table of the Elements Scandium

All Sources -
Updated Media sources (1) About encyclopedia.com content Print Topic Share Topic
views updated

scandium (symbol Sc) Silver-white, metallic element of group III of the periodic table discovered in 1879 by Swedish chemist Lars Nilson (1840–99) and named for Scandinavia where it was discovered. It is found in thortveitite and, in small amounts, in other minerals. Scandium is a soft metal used as a radioactive tracer and in nickel alkaline storage batteries. Chemically it resembles the rare-earth metals of the lanthanide series. Properties: at.no. 21; r.a.m. 44.956; r.d 2.99; m.p. 1539°C (2802°F); b.p. 2832°C (5130°F); most common isotope Sc45 (100%).

views updated

Periodic Table of the Elements: Scandium

Periodic Table of the Elements: Scandium
Atomic Number: 21
Atomic Symbol: Sc
  Scandium
Atomic Weight: 44.95591
Electron Configuration: 2 · 8 · 9 · 2