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3 Cards in this Set
- Front
- Back
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Groups or Families: Columns in the periodic table.
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Periods: Rows in the periodic table.
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2 groups of the most reactive elements are the Alkali Metals and Alkaline Earth Metals.
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These metals are so reactive because they have low ionization energy.
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Ionization energy - The amount of energy needed to pull an electron away from an atom.
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Alkali metals react w/ air and water.
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