Chest radiograph. A chest radiograph, colloquially called a chest X-ray (CXR), or chest film, is a projection radiograph of the chest used to diagnose conditions affecting the chest, its contents, and nearby structures. Chest radiographs are the most common film taken in medicine.
Helium atom is created by two Hydrogenâs atoms which are the smallest, basic, stabile, unclosed quantum, wave-particle formation.Hydrogen atom by. different relationships create all stabile formations and. Helium atom { a particle of nucleus} is the most stabile formation.Atoms structures are bond by energetic part {semi-loop}. strong forces of quantum and are very strong bonds but molecules relationships {covalence} are bond by gravity{semi-loop} - weak forces and are bond by electrons.y United Nature Theory. Helium atom is created by two Hydrogenâs atoms which are the smallest, basic, stabile, unclosed quantum, wave-particle formation. Hydrogen atom by. different relationships create all stabile formations and. Helium atom { a particle of nucleus} is the most stabile formation.
Helium is a member of the noble gas family. The noble gases are the elements in Group 18 (VIIIA) of the periodic table. The periodic table is a chart that shows how the elements are related to one another. The noble gases are also called the inert gases.