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.
The element helium is an inert or noble gas, and is found on the periodic table with the other inert gases in Group 18.They're the elements down the far right column of the table.he element helium is an inert or noble gas, and is found on the periodic table with the other inert gases in Group 18.