Structure of Matter

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Across
  1. 2. the negatively charged particle in an atom that floats around the nucleus at high energy
  2. 6. the positively charged particle in an atom that has an atomic mass of 1 amu
  3. 8. made of only one type of atom
  4. 10. number in a chemical formula that shows the number of molecules involved
  5. 11. abbreviation to represent different types of atoms, or elements
  6. 13. the location of the electrons in an atom
  7. 14. a single substance that is consistent throughout
  8. 16. anything that has mass and volume
  9. 17. this subatomic particle does not contribute to atomic charge of an atom
Down
  1. 1. the small particles that make up atoms
  2. 3. number in a chemical formula that shows the number of atoms involved
  3. 4. part of the periodic table that tells you the number of protons
  4. 5. smallest particle of an element, the building block of matter
  5. 7. protons plus neutrons
  6. 9. contains protons and neutrons, is positively charged
  7. 12. two or more atoms combined chemically
  8. 15. made of two or more different types of atoms combined chemically