Question
Differentiate between homogeneous and heterogeneous mixtures with examples.
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| Elements | Atomic number | Mass number | Protons | Electrons | neutrons | Electronic configuration | Valency |
| Chlorine | 17 | ___ | ___ | ___ | 18 | ___ | ___ |
| Silicon | ___ | 28 | ___ | 14 | ___ | ___ | ___ |
| Fluorine | ___ | ___ | 9 | ___ | 10 | ___ | ___ |