Science

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flashcardsss
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56508
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Science
Updated:
2010-12-16 16:14:01
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Final3
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Final 3
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  1. element
    a substance that cannot be separated or broken down into simpler substances by chemical means; all atoms of an element have the same atomic number
  2. compound
    a substance made up of atoms of two or more different elements joined by chemical bonds
  3. mixture
    a combination of two or more substances that are not chemically combined
  4. solution
    a homogeneous mixture throughout which two or more substances are uniformly dispersed
  5. solute
    in a solution, the substance that dissolves in the solvent
  6. solvent
    in a solution, the substance in which the solute dissolves
  7. concentration
    the amount of a particular substance in a given quantity of a mixture, solution, or ore
  8. suspension
    a mixture in which particles of a material are more or less evenly dispersed throughout a liquid or gas
  9. atom
    the smallest unit of an element that maintains the chemical properties of that element
  10. bohr model for atomic structure
  11. Energy levels KLMN
  12. Protons
    posotive charge
  13. neutrons
    neutral charge
  14. electron
    negative charge
  15. atomic number
    the number of protons in the nucleus of an atom; the atomic number is the same for all atoms of an element
  16. atomic mass
  17. Isotope
    an atom of the same element that has the same number of protons but different number of neutrons
  18. ion
    an atom (or group of atoms) that has become electrically charged. Meaning the atom has gained or lost electrons.

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