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Science
Periodic Table
| Question | Answer |
|---|---|
| Compund | Two or more different elements chemically bonded together |
| Elements | Over 100 pure substances displayed on the periodic table |
| Mixture | Two or more pure substances not chemically bonded together , like air |
| Atomic Number | The top number on the element symbol block |
| Atomic Mass | The average number of protons+ neutrons0 for an element |