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Across
  1. 5. The combining of atoms to form molecules.
  2. 8. First group of the periodic table.
  3. 10. Vertical row of elements.
  4. 11. Unreactive nonmetals.
  5. 13. The repeating pattern in a crystal.
  6. 16. Electron found in the outermost shell of an atom.
Down
  1. 1. A bond that is formed when electrons are transferred between atoms.
  2. 2. A bond that is formed by the attraction between metal ions and electrons.
  3. 3. A positively/negatively charged molecule.
  4. 4. A Negatively charged ion.
  5. 6. Highly reactive metals
  6. 7. Horizontal row of elements.
  7. 9. Second group of the periodic table.
  8. 12. A bond interaction that holds atoms or ions together.
  9. 14. A bond that is formed when atoms share electrons.
  10. 15. A positively charged ion.