Chemistry Vocab Ch. 4

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Chemistry Vocab Ch. 4
2013-12-03 20:04:19

Ch. 4 Vocab for Chemistry Honors
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  1. Form of energy that exhibits wavelike behavior as it travels through space
    Electromagnetic Radiation
  2. All the forms of electromagnetic radiation together
    Electromagnetic Spectrum
  3. The distance between corresponding points on adjacent waves
  4. Number of waves that pass a given point in a specific time, usually one second; SI unit is Hertz (Hz)
  5. Emission of electrons from a metal when light shines on the metal
    Photoelectric Effect
  6. Minimum quantity of energy that can be lost or gained by an atom
  7. A particle of electromagnetic radiation having zero mass and carrying a quantum of energy
  8. Lowest energy state of an atom
    Ground state
  9. State in which an atom has a higher potential energy than in its ground state
    Excited state
  10. When a narrow beam of the emitted light was shined through a prism, it was separated into four specific colors of the visible spectrum
    Line-Emission Spectrum
  11. The emission of a continuous range of frequencies of electromagnetic radiation
    Continuous Spectrum
  12. States that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle
    Heisenberg Uncertainty Principle
  13. Describes mathematically the wave properties of electrons and other very small particles
    Quantum Theory
  14. Specify the properties of atomic orbitals and the properties of electrons in orbitals
    Quantum Numbers
  15. A 3-D region around the nucleus that indicates the probable location of an electron
  16. Symbolized by n, indicates the main energy level occupied by the electron
    Principal Quantum Number
  17. Symbolized by l, indicates the shape of the orbital
    Angular Momentum Quantum Number
  18. Symbolized by m, indicates the orientation of an orbital around the nucleus
    Magnetic Quantum Number
  19. Has only 2 possible values (+1/2, -1/2) which indicates the 2 fundamental spin states of an electron in an orbital
    Spin Quantum Number
  20. Arrangement of electrons in an atom
    Electron Configuration
  21. An electron occupies the lowest energy level that can receive it
    Aufbau Principle
  22. No 2 electrons in the same atom can have the same set of 4 quantum numbers
    Pauli Exclusion Principle
  23. 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 state
    Hunds Rule
  24. The electron-containing main energy level with the highest principal quantum number
    Highest Occupied Level
  25. Electrons that are not in the highest occupied energy level
    Inner-Shell Electrons
  26. The group 18 elements; inert; nonreactive. 8 e- in outermost energy level
    Noble Gases
  27. An outer main energy level fully occupied, in most cases, by 8 electrons
    Noble-Gas Configurations