Tesaurus d'Art i Arquitectura Getty Institute 0000-00-00 2024-01-24 15:40:44 en thorium300379770TH Pure metallic element having symbol TH and atomic number 90; a radioactive, soft, silvery metal most often extracted from the phosphate mineral, monazite. Use also for this metal as processed and formed, usually in combination with other substances, to make various objects and materials. thorium (traducció pendent) thorium (traducció pendent) 2026-03-30 20:32:39