Atoms

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Across
  1. 3. A neutrally charged particle. (0 electrical charge)
  2. 5. A positively charged particle. (+ electrical charge)
  3. 6. is a positively charged center of an atom that contains protons and neutrons.
  4. 7. A combination of two or more materials that are NOT chemically combined.
  5. 9. is what forms when two or more atoms combine
  6. 10. This means they cannot be broken down further
Down
  1. 1. The building blocks of matter
  2. 2. The combined number of protons and neutrons found in the nucleus.
  3. 4. Two or more different elements that combine by a chemical change and create something with NEW
  4. 8. A negatively charged particle. (- electrical charge)