Semester 1 Crossword Extra Credit

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Across
  1. 2. Two elements are substituted
  2. 4. A pulse B Forms AB
  3. 6. A group of atoms that bear one or more positive or negative electrical charge.
  4. 9. Bond If the energy that went into breaking bonds is greater than the energy Exothermic reaction that release heat
  5. 10. A representation of a chemical reaction using symbols.
  6. 11. (of a reaction or process) accompanied by or requiring the absorption of heat.
  7. 13. Sub particle.Adam that has no charge and Found in the nucleus.
  8. 15. the degree of compactness of a substance.
  9. 16. The atoms and molecules produced by the action
  10. 17. element located on the right side of the perotic table
Down
  1. 1. Breaking And changing size of a object.
  2. 3. Rearrangement of atoms of one or more substance.
  3. 5. One element is substituted for another.
  4. 7. Orbitals With a negative charge.
  5. 8. Rapid chemical combination Of Oxygen Heat and light.
  6. 12. Found.On the left side of the periodic table.
  7. 14. A substance that undergoes change in a reaction.