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12 Cards in this Set
- Front
- Back
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What is a capital letter or a combination of a capital letter and a small letter that is used to represent an element?
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Chemical Symbol
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What are horizontal rows of elements?
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Periods
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A chart that shows the classification of elements.
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Periodic Table
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Vertical columns of elements.
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Groups
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The region around the nucleus occupied by elections.
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Electron Cloud
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What is the number of protons in an atom?
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atomic number
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The center of an atom where protons and neutrons are located.
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Nucleus
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What is a total count of neutrons and protons in an atom?
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Mass Number
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Atoms of the same element but with different numbers of nuetrons.
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Isotope
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Elements that are found on the left side of the periodic table.
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Metals
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What are particles that move around the nucleus and have a negative charge?
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Electrons
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Elements that have properties of both metals and nonmetals.
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Metalloids
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