KnowraActinideLinked fromLinked fromThe 24 pages that link to Actinide, each with the reason it gives.All 24Broader topic 2Related 2Narrower topic 14Compared with 6Periodic table blocksBroader topic: Actinides make up the second f-block series and include many radioactive elements.Period 7 elementBroader topic: The actinides form the central portion of period 7.