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8 Cards in this Set
- Front
- Back
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What is an atom?
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is the smallest particles or an element
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One thing about Dalton's Theory
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All elements are composed of atoms that cannot be divided
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One thing about Dalton's Theory
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All atoms of the same element are exactly alike and have the same mass
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Another thing about Dalton's Theory
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Atoms of different elements are different and have different masses
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What does "Periodic" mean
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a repeating pattern
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How many groups or columns are in the periodic table
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18 Groups
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How many rows or periods are in the periodic table
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7 Rows
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What are the stars made up of
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Hydrogenexist
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