| A | B |
|---|
| ATOMIC NUMBER | number of protons |
| ATOMIC MASS | mass of neutrons and protons plus all isotopes of the atom |
| ATOMIC WEIGHT | mass of neutrons and protons plus all isotopes of the atom |
| MASS NUMBER | how many neutrons and protons there are in the atom |
| ISOTOPE | a version of an atom with less or more neutrons than protons |
| ION | a version of the atom with less or more electrons than protons |
| CATION | a version of the atom with less electrons than protons |
| ANION | a version of the atom with more electrons than protons |
| PROTON | a positively charged subatomic particle found in the nucleus |
| NEUTRON | a subatomic particle found in the nucleus of the atom |
| ELECTRON | a negatively charged subatomic particle that orbits the nucleus of the atom |
| NUCLEUS | the center of the atom where the protons and neutrons will be found |
| ELECTROMAGNETISM | the magnetic attraction between the positive protons and the negatively charge electrons |
