Radioactive iodine uptake testing is a useful diagnostic tool for assessing thyroid pathologies. The atom is the smallest unit of an element. An atom consists of electrons, protons and neutrons. Electrons revolve around the nucleus (made of protons and neutrons) in fixed orbits. The number of electrons equals number of protons in a neutral atom.
WHATâS NEW: 1  The Buffalo Bill Museum has been named one of the 25 best things to do in Iowa by VacationIdea Dream Vacation Magazine. 2  The Buffalo Bill Museum and LeClaire, Iowa are listed on the National Geographic website that helps people explore the Mississippi River.
Iowa has some pretty amazing âworldâs largestâ attractions, from a giant strawberry or ball of popcorn, to Albert the Bull, in Audubon. One of the most interesting and fun âworldâs largestâ attractions that Iowa has is the Iowa 80 Truckstop, the worldâs largest truck stop. Located off I-80 next to Walcott, Iowa, this amazing truck stop has been likened to a small city or a truckerâs Disneyland, so you know itâs definitely worth a stop, whether youâre a trucker or not. Flickr/Ben Fast. Facebook/Iowa 80 - The Worldâs Largest Truckstop.