click below
click below
Normal Size Small Size show me how
Atomic Structure
Atomic Structure Voacabulary
Term | Definition |
---|---|
Atom | basic unit of a chemical element |
Nucleus | the center of an atom which contains the protons and neutrons |
Electron Shell | orbitals around the nucleus of an atoms which contains electrons |
Proton | positive atomic particle located in the nucleus |
Neutron | neutral atomic particle located in the nucleus |
Electron | negative atomic particle located in shells around the nucleus |
Atomic Number | the number of protons in the nucleus of an atom |
Atomic Mass | the number of protons and neutrons in the center of a nucleus |
Isotope | different number of neutrons in the nucleus of an element |