chemistryChapter5

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  1. mendeleev
    developed periodic table
  2. periodic law
    the physical and chemical properties of an element are functions of its atomic number
  3. halogens
    most reactive nonmetals, react with most metals to form salts
  4. alkali metals
    most reactive metals, contain single s valence electron, group 1, very soft, silver
  5. alkaline earth metals
    group 2, almost as reactive as alkali, harder, denser, and stronger than alkali metals w/ higher melting points
  6. shielding effect
    pull on electrons is reduced as number of electrons increases
  7. electron affinity
    energy change that occurs when an electron is acquired by a neutral atom
  8. ionization energy
    energy required to remove one electron from a neutral atom of a element
  9. greatest electronegativity
    fluorine; upper right hand corner
Author:
dimeng
ID:
313341
Card Set:
chemistryChapter5
Updated:
2015-12-17 02:25:43
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andrew Chemistry
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Description:
chapter 5
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