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Details Title: Chapter 4 Description: 4 Northside Holt Chemistry Total Flash Cards: 27 Created: 09/22/2004 09:15:22	To study from this set of flash cards, or to create your own your own study flash cards, register HERE. If you are already a registered user, CLICK HERE.
Cards Term Electromagnetic radiation Definition A form of energy that exhibits wavelike behavior as it travels through space. Term Electromagnetic spectrum Definition All forms of electromagnetic radiation. Term Wavelength Definition The distance between corresponding points on adjacent waves. Term Frequency Definition The number of waves that pass a given point in a specific time period, usually one second. Term Photoelectric effect Definition The emission of electrons from a metal light when light shines on the metal. Term Quantum Definition The minimum quantity of energy that can be lost or gained by an atom. Term Photon Definition Particle of electromagnetic radiation having zero mass and carrying a quantum of energy. Term Ground State Definition Lowest energy state of an atom. Term Excited State Definition An atom has a higher potential energy than it has in its ground state. Term Line-emission Spectrum Definition A series of specific wavelengths of emitted light created when the visible portion of light is shined through an atom. Term Continuous Spectrum Definition Emission of a continuous range of frequencies of electromagnetic radiation. Term Heisenberg Uncertainty Principle Definition States that it is impossible to determine simultaneously both position and velocity of an electron. Term Quantum Theory Definition Describes mathematically the wave properties of electrons. Term Orbital Definition A 3D region around the nucleus that indicates the probable location of an electron. Term Quantum Numbers Definition Specify the properties of atomic orbitals and the properties of electrons in orbitals. Term Angular Momentum (Second) Quantum Number Definition The quantum number that indicates the sublevel. Term Principal Quantum Number Definition The quantum number that indicates the main energy level occupied by an electron. Term Magnetic (Third) Quantum Number Definition The quantum number that indicates the orbital. Term Spin Quantum Number Definition The quantum number that indicates the spin of the electron in an orbital. Term Aufbau Principle Definition An electron occupies the lowest-energy orbital that can receive it. Term Electron Configuration Definition A description of the arrangement of electrons in an atom. Term Pauli Exclusion Principle Definition No two electrons in the same atom can have the same set of 4 quantum numbers. Term Hund's Rule Definition Orbitals of equal energy are each occupied by one electron before any orbital is occupied by a second electron, and all electrons in singly occupied orbitals must have the same spin. Term Highest Occupied Level Definition Electron-containing main energy level with the highest principal quantum number. Term Inner-shell Electron Definition Electrons that are not in the highest occupied energy level. Term Noble Gases Definition Group VIIIA elements that have a full outer shell and do not react under normal laboratory conditions. Term Noble Gas Configuration Definition An outer main energy level fully occupied, in most cases, by eight electrons.