Chemistry Vocabulary Extra Credit

Edit Answers
1234567891011121314151617181920
Across
  1. 4. The electron _____________ is where electrons can be located.
  2. 6. A positively charged ion.
  3. 8. A pure substance that can be broken down into two or more simpler pure substances by chemical means.
  4. 9. The building block of matter.
  5. 11. A pure substance that cannot be broken down into simpler pure substances by chemical means such as a chemical reaction.
  6. 13. The positive subatomic particle found in the nucleus.
  7. 14. Very dense region found in the center of the atom.
  8. 16. This atom is the smallest in group 15.
  9. 17. The rows of the Periodic Table are known as these.
  10. 18. This atom is the most electronegative in Period 4.
  11. 20. An atom that has a charge due to it gaining or losing a electron(s).
Down
  1. 1. The columns of the Periodic Table are known as these.
  2. 2. Electrons found in the outermost shell of an atom are known as ___________ electrons.
  3. 3. An atom that comes in multiple forms with different mass numbers.
  4. 5. Physical combination of two or more pure substances in which each substance retains its own chemical identity.
  5. 7. A negatively charged ion.
  6. 10. Anything that has mass and takes up space.
  7. 12. A neutral subatomic particle found within the nucleus.
  8. 15. The negative charged subatomic particle found in the atom.
  9. 19. This chemist discovered the nucleus by shooting particles at Gold Foil.