Unit 1 Review

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