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Chapter 5 vocabulary
vocabualry words
| Question | Answer |
|---|---|
| Electromagnetic Radiation | form of enerygy that exhibits wavelike behavior as it travels through space |
| wavelenght | tha shortest distance between equivalent points on a continuous wave |
| Frequency | the number of waves that pass a given point per second |
| Amplitude | the waves height from the origin to a crest, or from the origin to a trough |
| Electromagnetic Spectrum | encompasses all forms of electromagnetic radiation, with the only difference in the types of radiation being their frequencies and wavelenghts |
| quantum | the minimum amount of energy that can be gained or lost by an atom |
| Planck's Constant | has a value of 6.626 x 10^-34, Where J is the symbol for the joule, the SI unit of energy |
| Photoelectric Effect | are emitted from a metal's surface when light of a cartain frequency shines on the surface |
| Photon | is a particle of electromagnetic radiation with no mass that carries a quantum of energy |
| Atomic Emission spectrum | is the set of frenquencies of the electromagntic waves emitted by atoms of the element |
| Ground state | lowest allowable energy state of an atom |
| de Broglie equation | predicts all moving particles have wave characteristics |
| Heisenberg Uncertainty principle | states that it is a fundamentally impossible to know precisely both the velocity and postion of a particle at the same time |
| quantum mechanical model of the atom | atomic model in which electrons are treated as waves |
| atomis orbital | a three dimensional region around the nucleaus |
| Principal Quantum numbers | the relative sizes and energies of atomic orbitals |
| Principal energy levels | atoms major energy levels |
| energy sublevels | part of the energy level |
| electron configuration | arrangement of electrons in an atom |
| aufbau principal | each electron occupies the lowest energy orbital avaliable |
| pauli exclusion principal | states that a maximum of two electrons may occupy a single atomis orbital, but only if the electrons have opposite spins |
| hund's rule | single electrons wioth the same spin must occupy each equal energy obital before additional electrons with oppostie spins can occupy the same orbitals |
| valence electrons | electrons in the atom's outermost orbitals |
| electron dot structure | consists of the elements symbol, which represents the stomic nucleus and inner level electrons surrounded by dots representing the atom's valence electrons. |
Created by:
Renee0617
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