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Atomic structure
| Question | Answer |
|---|---|
| atoms | the smallest particle of an element that still remains the properties of the element |
| nucleus | the small positively charged center of an atom, contains protons and neutrons |
| proton | particle in the nucleus with an electric charge 1+ |
| neutrons | electricity neutral particle inside the nucleus of an atom |
| electron | particle with a charge of 1-, surrounds the nucleus of an atom |
| quarks | particle of matter that makes up protons and neutrons |
| valence electrons | the electrons in the outermost shell or energy level of an atom |
| periodic table | organized list of all know elements that are arranged by increasing atomic numbers and by changing in the chemical and physical properties |
| atomic number | number of protons in an atoms nucleius |
| mass number | sum of the number of protons and neutrons in an atoms nucleus |
| isotope | atom of an element that has a specific number of neutrons |
| avg atomic mass | weighted average mass of an elements isotope |
| electron dot diagram | uses the symbol for an element and dots representing the number of electrons |
| group | vertical column of the periodic table |
| period | horizontal row of the periodic table |
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