EntityQ5203310· pop 5· linked from 18 articlesd-block contractionSign in to saveterm used in chemistry to describe the effect of having full d orbitals on the period 4 elementsConnectionsionization energyEntityPeriodic tableConceptaluminiumEntityheliumEntityneonEntityboronEntityargonEntityInternational Standard Book NumberEntityarsenicEntitykryptonEntitygalliumEntitybromineEntityseleniumEntityscandiumEntityxenonEntitygermaniumEntityyttriumEntityindiumEntitythalliumEntitylanthanumEntityCategoriesAtomic radiusChemical bonding