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.
Born near LeClaire in Scott County, Iowa, in 1846, Buffalo Bill Cody rode on the Pony Express at the age of 14, fought in the American Civil War, served as a scout for the Army, and was already an Old West legend before mounting his famous Wild West show, which traveled the United States and Europe.