Unit 6 Vocabulary

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Across
  1. 2. How atoms combine based on valence electrons.
  2. 5. A column on the periodic table where every element has the same number of valence electrons.
  3. 10. A subatomic particle with a negative charge found in the electron cloud.
  4. 11. The smallest particle that makes up matter.
  5. 12. The part of an atom where electrons are found.
  6. 13. A row on the periodic table where every element has the same number of energy levels.
Down
  1. 1. A chart of all the known elements and their properties.
  2. 3. An electron in the outermost energy level of an atom.
  3. 4. The number that tells you how many protons an atom has.
  4. 6. The total number of protons and neutrons in an atom's nucleus.
  5. 7. A subatomic particle with a positive charge found in the nucleus.
  6. 8. the center of an atom where protons and neutrons are located.
  7. 9. A subatomic particle with no charge found in the nucleus.