KnowraScandiumLinked fromLinked fromThe 9 pages that link to Scandium, each with the reason it gives.All 9Broader topic 5Related 1Compared with 3Rare-earth elementBroader topic: Scandium is included despite its different position and lighter mass because its chemistry resembles the group’s.Dmitri MendeleevBroader topic: Its properties confirmed Mendeleev's prediction of eka-boron.d-blockBroader topic: Scandium is a boundary case because its common ion has no d electrons.Period 4 elementBroader topic: It is the first Period 4 element in which the 3d subshell begins to fill.Group 3 elementBroader topic: It is a conventional Group 3 member and illustrates the group’s early transition-metal chemistry.