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9 Cards in this Set
- Front
- Back
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The smallest particle of an element is an |
atom |
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Atoms are composed of |
protons and neutrons (in the nucleus) and electrons (orbiting around nucleus). |
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Elements |
cannot be broken down into other substances |
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The atomic number tells the |
number of protons and electrons the atom contains |
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Compounds are |
2 or more elements chemically combined, Examples: H2O, CO2, NaCl |
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Mixtures are |
2 or more substances NOT chemically combined |
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heterogeneous mixture |
can see the different parts, Example: fruit salad |
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homogeneous mixture |
evenly mixed, can’t see differ parts, Example: salt water |
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Mixtures can be easily separated by |
filtration, evaporation, magnetism, distillation (boiling) |
