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Definition
| a fundamental material consisting of only one type of atom |
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| a chart in which all known elements are organized by their properties |
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| an abbreviation for an elemnt or atom |
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| the dense, positively charged center of every atom |
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Definition
| an extremely small, negatively charged subatomic particle found outside the atomic nucleus |
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Definition
| a positively charged subatomic particle of the atomic nucleus |
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Definition
| a count of the number of protons in the atomic nucleus |
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Definition
| an electrically neutral subatomic particle of the atomic nucleus |
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Definition
| any subatomic particle found in the atomic nucleus. another name for either proton or neutron |
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| atoms of the same element whose nuclei contain the same number of protons but different numbers of neutrons |
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| the number of nucleons (protons and neutrons) in the atomic nucleus. used primarily to identify isotopes |
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| the mass of an element's atoms listed in the periodic table as an average value based on the relative abundance of the element's isotopes |
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Definition
| an element that is shiny, opaque, and able to conduct electricity and heat |
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Definition
| an element located toward the upper right of the periodic table and is neither a metal nor a metalloid |
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Definition
| an element that exhibits some properties of metals and some properties of nonmetals |
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Definition
| a horizontal row in the periodic table |
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| a vertical column in the periodic table, also known as a family of elements |
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Definition
| the gradual change of any property in their elements across a period |
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