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chapter 5 vocabulary
vocab
| Question | Answer |
|---|---|
| electromagnetic radiation | is a form of energy that exhibits wavelike behavior as it travels space. |
| wavelength | the length, frenquency, amplitude, and speed. |
| frenquency | is the number of waves that pass a given point per second. |
| amplitude | is the wave's height from the origin to a crest or from the origin to a trough |
| electromagnetic spectrum | encompasses all forms of electomagnetic radiation |
| quantum | is the minimum amount of energy that can be gained or lost |
| planck's constant | has the value of 6.626x10^-34 J*s where j is the symbol for joule the SI unit of energy |
| photoelectric effect | photoeletrons are emitted from a metal surface when light of a certain 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 an element is the set of frequencies of the electromagnetic waves emitted by atoms of the element |
| ground state | the lowest allowable energy state of an atom |
| de Brogile equation | predicts that all moving particles have wave characteristics. |
| Heisenberg uncertainty | states that it is fundamentally impossible to know precisely both the velocity and position of a particle at the same time. |
| quantum mechanical model of the atom | the atomic model in which electrons are treated as waves |
| atomic orbital | three dimensional region around the nucleus describes the electron's probable location |
| principla quantum numbers | indicate the relative sizes and energies of atomic orbitals. |
| principal energy levels | n specifies the atoms major energy levels |
| energy sublevels | part of energy levels |
| electron configuration | arrangement of electrons in an atom |
| aufbau principle | states that each electron occupies the lowest energy orbital available. |
| pauli exclusion principle | states that a maximum of two electronsmay occupy a single atomic orbital. |
| hunds rule | states that a singleelectrons with the same spinmust occupyeach equal energy orbital before additional electrons with opposite spins can occupy same orbitals |
| electron dot structure | consists of the elements symbol which represents the atomic nucleus and inner level electrons surrounded by dots representing the atoms valence electrons |
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salamanderblaster
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