Atoms and Molecules

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Across
  1. 5. a negatively charged particle that surrounds the nucleus.
  2. 6. positively charged particle found in the nucleus.
  3. 7. a particle that has no electrical charge. Found in the nucleus.
  4. 8. a molecule of at least two different elements.
  5. 11. symbol, an abbreviation for the elements found on the periodic table
  6. 12. number, Number of protons found in the nucleus of the atom
Down
  1. 1. a substance that cannot be further broken down, found on the periodic table.
  2. 2. Two or more substances NOT chemically combined
  3. 3. the smallest particle of an element; made of electrons, protons, and neutrons.
  4. 4. the simplest unit of a chemical, formed when two or more atoms join together through bonds.
  5. 9. Substance, Made of one type of matter and cannot be separated.
  6. 10. mass, the mass found in the nucleus of an atom. It is found by adding protons and neutrons.