Matter Crossword

Edit Answers
12345678910111213141516
Across
  1. 6. This model of the atom lets us see the circular orbits around nucleus
  2. 7. A type of matter with a fixed composition
  3. 8. A particle with a positive charge
  4. 12. A substance made of atoms that are all alike
  5. 13. The sum of the protons and neutrons in an atom
  6. 14. The part of the atom that circles the nucleus
  7. 16. A particle that has no charge
Down
  1. 1. ________ electrons are the electrons on the outermost orbit of an atom
  2. 2. The columns on the periodic table
  3. 3. The rows on the periodic table
  4. 4. The number that determines the identity of an atom
  5. 5. A tool scientists have created that organizes elements by increasing atomic number and by changes in physical and chemical properties
  6. 9. The center of the atom
  7. 10. Anything that has mass and takes up space
  8. 11. A particle with a negative charge
  9. 15. The smallest particle of an element