Atoms, Elements, Compounds, Mixtures Crossword Puzzle
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QUESTIONS LIST:
- atom : the smallest thing that can exist on it's own
- compound : two or more elements chemically joined, not easily separated
- element : material made of all of one type of atom
- mixture: two of more elements, mixed together, easily separated
- nucleus: centre of the atom
- proton : positively charged subatomic particle
- neutron : neutral subatomic particle
- electron : negatively charged subatomic particle
