elements

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Across
  1. 5. are located on the right side of the periodic table
  2. 7. A negatively charged particle
  3. 9. A tool used by chemists to help arrange the elements based on certain characteristics they share
  4. 10. The positively charged center of an atom that contains protons and neutrons
  5. 11. are located on the left side of the periodic table
Down
  1. 1. A positively charged particle
  2. 2. The building blocks of matter
  3. 3. is what forms when two or more atoms combine
  4. 4. A neutrally charged particle
  5. 6. Two or more different elements that combine by a chemical change and create something with NEW and different physical and chemical characteristics
  6. 8. A combination of two or more materials that are NOT chemically combined