Matter Crossword

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Across
  1. 7. a ordered arrangement of the chemical elements into rows and columns.
  2. 8. each of more than one hundred substances that cannot be chemically broken down into simpler substances
  3. 9. An electron is a tiny, negatively charged particle that orbits the nucleus of an atom
  4. 10. a stable, positively charged subatomic particle found within the nucleus of every atom.
Down
  1. 1. a subatomic particle found in the nucleus of every atom
  2. 2. when atoms from different elements combine, creating a substance with new properties.
  3. 3. in chemistry are physical combinations of two or more substances
  4. 4. the fundamental, indivisible building blocks of all matter
  5. 5. the positively charged central core of an atom
  6. 6. defined as any physical substance that possesses mass and occupies space