Unit 1 Review

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Across
  1. 6. Electron in the outermost energy level.
  2. 7. Horizontal row on the periodic table.
  3. 8. Subatomic particle with a positive charge, that tells us what element it is.
  4. 9. Subatomic particle with a negative charge.
  5. 11. When an atom has an equal number of protons and electrons.
  6. 13. Type of bond where electrons are transferred between a metal and a nonmetal.
  7. 14. When a molecule like water has a positive and negative end.
  8. 16. The element with the largest atomic radius.
Down
  1. 1. Type of bond where electrons are shared between two nonmetals.
  2. 2. Analyzing the colors a planet or star gives off to see what elements it contains.
  3. 3. The element with the highest ionization energy.
  4. 4. Subatomic particle with no charge.
  5. 5. Atom with a charge.
  6. 10. Element in group 2, period 4.
  7. 12. Number of electron energy levels that Magnesium has.
  8. 15. Vertical column on the periodic table.
  9. 17. Element with 6 protons, 6 neutrons and 6 electrons.