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| subatomic particle that has a negative charge. |
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| what an atom's nucleus is made up |
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| the sum of the protons and neutrons in an atom |
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| equal to the number of protons in an atom |
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| the name of a column on the periodic table of elements. |
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Definition
| the three main groups of elements are metals, nonmetals, and _______________ |
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| the amount of matter in an object |
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| electrons located on the outer most energy level of the electron cloud |
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| similar properties or characteristics |
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Definition
| elements in the same group on the periodic table have _______ |
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| elements on the right side of the periodic table |
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| what does the stepped line on the periodic table separate? |
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| being shiny, drawn into wires, and pounded into thin sheets are all characteristics of? |
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| horizontal rows on the periodic table |
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| elements located on the _______ side of the periodic table are highly reactive |
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Term
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Definition
| matter that is composed of only one type of atom |
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