Chemistry Test 12/19
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Created by:
mariadevoto on December 17, 2011
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15 terms
Terms | Definitions |
|---|---|
 Bohr Model | describes electrons in particles that travel in circular orbits around the nucleus |
| photon | a particle of electromagnetic radiation with no mass that carries a quantum of energy |
| quantum | the minimum amount of energy that can be gained or lost by an atom |
| deBroglie equation | predicts that all moving particles have wave characteristics and relates each particle's wavelength to its frequency, its mass, and Plank's Constant |
| Heisenberg uncertainty principle | states that it is not impossible to know precisely both the velocity and the position of a particle at the same time |
| Schrodinger wave equation | originally applied to the hydrogen atom, it led to the quantum mechanical model of the atom |
| Hund's rule | states that single electrons with the same spin must occupy each equal-energy orbital before additional electrons with opposite spins can occupy that same orbitals |
| Aufbau Principle | states that each electron occupies the lowest energy orbital |
| pauli exclusion principle | states that a maximum of two electrons may occupy a single atomic orbital, but only if the electrons have opposite spins |
| principal quantum number | (n) main energy levels of an atom, and the number of sublevels within each energy level of an atom, size and energy |
| sublevel quantum number | (l) shape of the orbital |
| magnetic quantum number | (m) 3-d orientation, designates a particular orientation of the orbital |
| spin quantum number | (s) spin of electron |
| quantum numbers | the minimum amount of energy that can be gained or lost by an atom |
| quantum mechanical model of the atom | describes electrons in orbits |
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