ChemTestRvw

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Author:
HannahD
ID:
186133
Filename:
ChemTestRvw
Updated:
2012-11-29 17:33:31
Tags:
Chemistry Test Review Atoms Electron Configuration Protons
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Description:
A review over the structure and history of atoms.
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  1. Ions are caused by the gain or loss of ____________.
    Electrons.
  2. Positive ions are ____________ (smaller/larger).
    Smaller
  3. Negative ions are ____________ (smaller/larger).
    Larger
  4. _________ first proposed the idea of atoms.
    Democritus
  5. ___________ said that matter is empty space through which atoms move.
    Democritus
  6. ___________ said that atoms are solid, homogeneous, indestructable, and invisible.
    Democritus
  7. ___________ said that changes in matter are due to groupings, not atoms themselves.
    Democritus
  8. ___________ disputed the idea of an atom.
    Aristotle
  9. ___________ said that all matter is composed of atoms.
    John Dalton
  10. The "plum pudding model" was used by ___________.
    J. J. Thompson
  11. ___________ conducted the "gold foil experiment."
    Ernest Rutherford.
  12. ___________ discovered the nucleus.
    Ernest Rutherford
  13. ___________ conducted the first artificial nuclear reaction.
    James Chadrick
  14. ___________ discovered that different elements have unique numbers of protons.
    Moseley
  15. ___________ arranged elements according to increasing atomic number.
    Moseley
  16. ___________ are caused by differences in the number of neutrons (thus, mass).
    Isotopes
  17. Mass number = protons + ___________
    Neutrons
  18. A ___________ atom has exactly 12amu.
    Carbon-12
  19. What type of ionizing radiation can be blocked by clothing?
    Alpha particle
  20. If an isotope undergoes beta emission:
    The number of neutrons remains the same.
  21. In ___________, certain atoms break into fragments when struck by neutrons.
    Nuclear fission
  22. In ___________, a chain reaction occurs.
    Nuclear fission
  23. In ___________, energy is released as heat.
    Nuclear fission
  24. ___________ takes place in the sun.
    Nuclear fusion
  25. A reaction in which two light nuclei combine to form a heavier nucleus is termed:
    Fusion
  26. The properties of elements reoccur periodically when the elements are arranged in order of increasing:
    Atomic number
  27. Mendeleev's periodic table was able to predict:
    • The chemical properties of unknown elements
    • The existance of unknown elements
  28. The f-block contains ___ elements and sublevels.
    14
  29. The elements with the highest ionization energies are:
    Noble gases
  30. The statement that atoms tend to gain, lose, or share electrons in order to aquire a full set of valence electrons is called the:
    Octet rule
  31. The speed of light formula is:
  32. The energy formula is:
  33. The speed of light is:
  34. Planck's constant is:
  35. Avagadro's number is:

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