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scinece unit D
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| Question | Answer |
|---|---|
| the smallest part of an element that is a representive of that element | atom |
| invisable negativity charged particle that orbits the nucleus | electrons |
| positivily charged centere of atom | nucleus |
| positivly cherged particle in the necleuse of the atom | protons |
| neutrol particles in the necleus of a atom | neutrons |
| moss of one atome of an element | atomic mass |
| horizontal rows of elements in the periodic table | period |
| vertical colum of elements on the periodic table | group |
| a category in the classifiecation of living things | family |
| number of protons in the neclues of one atom of a element | atomic number |