| Term | Definition |
| Newtonian mechanics | Classical mechanics, or ____, describes the behavior of visible objects traveling at ordinary velocities. |
| Quantum numbers | Four ___are used in Schrodinger’s description of electron behavior. |
| Degenerate | Orbitals that are alike in size and shape and differ only in direction have the same energy and are said to be _____. |
| Momentum | The product of the mass and velocity of an object is a vector quantity know as ____. |
| Electron cloud | The volume in which an electron is likely to be found is call a(n) _____. |
| Heisenberg uncertainty principle | The ______ states that there is always some uncertainty about the position and momentum of an electron. |
| Wave-particle duality of nature | The idea of the two-sided nature of waves and particles is called ______. |
| Sublevel | A(n) _______ is one of many energy states grouped closely together to form an energy level. |
| Quantum mechanics | The behavior of extremely small particles traveling at velocities near that of light is described by ______. |
| Principal quantum number | The letter n represents the ____, which is used to describe energy levels. |
| Pauli Exclusion Principle | The _____ states that no two electrons in an atom have the same set of four quantum numbers. |
| Lewis electron dot diagram | The form of notation that shows the outer electrons around the symbol of an element is a(n) ________. |
| Probability | The _____ that an electron will be in a given position is the likelihood that the electron is to be in that position. |
| Orbital | A(n) _____ is the space occupied by a pair of electrons. |