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15 Cards in this Set
- Front
- Back
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How did Dobereiner classify the elements.
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In sets of three or triads.
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How did Newlands arranged the elements?
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According to atomic mass. Suggested every 8th element was similar.
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What did Mendeleev do?
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Constructed the first periodic table which he used to predict three new elements.
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The periodic law states what?
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When the elements are arranged in order of increasing atomic number, their properties show a periodic pattern.
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Metals have what properties?
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Lustrous, ductile, malleable, good conductors of head and electricity.
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Non metals have what?
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Diverse set of properties but do not resemble metals.
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Semimetals have some properties of what?
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Metals and Non metals.
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A periodic trend is what?
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A property that changed predictably as you move across a period or down a group of the periodic table.
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Ionization energy is the energy needed to do what?
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Remove an electron, forming a positive ion.
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Electron affinity has what pattern?
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Increases as you go right and decreases as you go down.
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Ionization has what type of pattern?
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Increases as you go right and decreases as you go down.
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Electronegitivty has what type of pattern?
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Increases as you go right and decreases as you go down.
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Atomic radius has what type of pattern?
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Decreases as you go right and increases as you go down.
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Electron affinity is what?
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Energy change that occurs when it gains an electron
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Atomic radius is what?
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Distance from the center of an atoms nucleus to its outermost electron.
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