RTPROCH PRELIM Flashcards
Building blocks of the radiographer; the basic component and smallest unit of matter
Atom
Parts of an atom
Nucleus and Orbit/Shell
Part of an atom that is the central core and positively charged
Nucleus
What does the nucleus contain
Nucleons
What contains in the nucleons
Protons and Neutrons
What are the 3 subatomic particles
Protons, Neutrons, Electrons
Lightest particle
Electron
Who discovered electrons and what year
John Joseph Thomson 1897
It is positively charged
Proton
Who discovered protons and what year
Ernest Rutherford 1911
It is the heaviest particle
Neutron
What is the charge of the neutron
Neutrally charged
Who discovered neutron and what year
James chadwick 1932
2 Forces acting on electron
Centrifugal and Centripetal
Outward force pushing electrons away from the center
Centrifugal force