Atoms and the Periodic Table - Grade 6

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Across
  1. 1. The center of an atom that contains the protons and neutrons
  2. 4. the building blocks of all matter
  3. 5. no charge
  4. 9. in an atom, particle with a neutral charge; located in the nucleus
  5. 10. a chart where all the elements are organized into periods and groups according to their properties
Down
  1. 2. One or two letter code that stands for an element; many symbols are abbreviations of the elements named, which may be English, Latin or Greek in origin
  2. 3. the material that all objects and substances are made of; anything that has mass and takes up space
  3. 6. in the electron cloud model of the atom, region around the nucleus where an electron may be found
  4. 7. positively charged particle located in the nucleus of an atom
  5. 8. A pure substance made of only one kind of atom
  6. 11. negatively charged particle found outside the nucleus of an atom