Properties of Atoms & Molecules Unit 1 Vocabulary Review

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Across
  1. 2. study of the basic building blocks of matter
  2. 6. negatively charged particle orbiting the nucleus of an atom
  3. 7. smallest part of matter that cannot be broken down by ordinary chemical means
  4. 8. electrons in outermost energy level of an atom
  5. 10. anything that has mass and takes up space
  6. 11. tight mass of protons and neutrons in the center of an atom
  7. 14. another name for atomic mass
  8. 15. mass of a proton or neutron
  9. 16. group of chemically connected atoms
Down
  1. 1. positively charged particle in the nucleus of an atom
  2. 2. bonding of two or more different kinds of atoms
  3. 3. the various distances at which an electron orbits the nucleus of an atom
  4. 4. two of the same type of atom bonded together
  5. 5. number of protons plus the number of neutrons in an atom
  6. 9. electrically neutral particle in the nucleus of an atom
  7. 12. scientist who studies how matter reacts to other matter
  8. 13. same type of atom with different numbers of neutrons
  9. 15. number of protons in an atom