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chem vocab.1
chemistry ch. 5 vocab
| Question | Answer |
|---|---|
| Electromagnetic radiation | a form of energy that exibits wavelike behavior as it travels through space |
| Frequency | (represented by V, the Greek letter nu) the number of waves that pass a given point per second |
| Amplitude | the wave's height from the orgin to a crest, or from the orgin to a trough |
| Electromagnetic radiation | a form of energy that exibits wavelike behavior as it travels through space |
| Frequency | (represented by V, the Greek letter nu) the number of waves that pass a given point per second |
| Amplitude | the wave's height from the orgin to a crest, or from the orgin to a trough |
| Electromagnetic Spectrum | aka (EM spactrum) encompasses all forms of electromagnetic radiation being their frequincies and wavelengths |
| Wavelength | the shortest distance between equivalent points on a continuous wave |
| Quantum Mechanical Model of the Atom | the atomic model on which eletrons are treated as waves is called the wave mechanical model of the atom |
| Ground State | the lowest allowable energy state of an atom |
| Principal quantum Number's (n) | indicates the relative sizes and energies of atomic orbitals |
| Principal Energy Levels | n specifies the atom's major energy levels |
| De Broglie Equation | y=h/mv predicts that all moving particles have wave characteristics |
| Electron Configuration | the arrangement of electrons in an atom |
| Heisenberg Uncertainty Principle | states that it is fundementally 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 on which eletrons are treated as waves is called the wave mechanical model of the atom |
| Atomic Orbital | a three-dimentional region around the nucleus... describes the electron's possible location |
| Principal quantum Number's (n) | indicates the relative sizes and energies of atomic orbitals |
| Principal Energy Levels | n specifies the atom's major energy levels |
| Energy Sublevels | the energy levels contained within a principle energy level |
| Electron Configuration | the arrangement of electrons in an atom |
| Aufbau Principal | states that each rlrctron occupies the lowest energy orbital available |
| Pauli Exclusion Principle | states that a maximum of 2 electrons may occupy a single atomic orbital, but only if the electrons have opposite spins |
| 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 the same orbitals |
| Valence Electrons | defined as electrons in the atom's outer most orbitals-- generally those orbitals associated with the atom's highest principle energy level |
| Electron-Dot Structure | consist of the element's symbol, which represents the atomic nucleus and inner-level electrons, surrounded by dots representing the atom's valence electrons |
| Photoelectric Effect | electrons, called photoelectrons, are emmitted from a metal's surface when light of a certain frequency shines on the suface |
| Photon | a particle of electromagnetic radiation with no mass that carries a quantum of energy |
| Atomic Emission Spectrum | the ____ of an element id the set of frequencies of the electromagnetic waves emitted by atoms of the element |
| Planck's Constant | value of 6.626x10^-34 jxs , J is the symbol for joule, the SI unit for energy |
| Quantum | the minimum amount of energy that can be gained or lost by an atom |
Created by:
precious1dog
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