8 Sci Ch 9-1 vocab Word Scramble
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Term | Definition |
atomic mass | The average mass of all the isotopes of an element. |
periodic table | An arrangement of the elements showing the repeating pattern of their properties. |
nucleus | In cells, a large oval organelle that contains the cell's genetic material in the form of DNA and controls many of the cell's activities. |
proton | Small, positively charged particles that are found in the nucleus of an atom. |
electron | A tiny, negatively charged particle that moves around the outside of the nucleus of an atom. |
period | A horizontal row of elements in the periodic table |
group | Elements in the same vertical column of the periodic table; also called a family. |
chemical symbol | A one or two letter representation of an element. |
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Atlantic High School
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