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Periodic Table

By: Harris
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Across
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6 proton and 6 neutrons
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____ number of protons and electrons
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Have more protons than electrons
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4 protons and 4 neutrons
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the number of protons in the nucleus of an atom, identifies the element
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1st level-2 2nd level-8...
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The amount of protons and neutrons
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8 protons and 8 neutrons
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Have less protons that electrons
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A class of substance that cannot be separated into simpler substances by chemical means
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2 protons and 4 neutrons
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3 protons and 4 neutrons
Down
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Positively charged particles
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a table of the chemical elements arranged in order of atomic number
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an atom or molecule with a net electric charge due to the loss or gain of one or more electrons
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10 protons and 10 neutrons
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Negatively charged particles outside the nucleus
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2 protons and 2 neutrons
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Smallest particle into which an element can be divided
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The center of the atom that is positively charged