lanthanide

Description: Classify elements 2 to 111 according to their group for the representative elements, by their period for the transition metals, or as a lanthanide or actinide. Note: Lanthanum is considered a lanthanide, and Actinium an actinide, while Lutetium and Lawrencium are transition metals, periods 5 and 6 respectively.
Popularity 3
Tags actinide alkali alkaline chalcogen chemical chemistry classification element elements family halogen lanthanide lundt noblegas sciencebowl transitionmetals
Author: same
Created: 2007-04-12