Atomic Structure Crossword Review

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Across
  1. 4. Chemical notation showing mass number and atomic number
  2. 8. Elements with properties of both metals and nonmetals
  3. 9. Electrons in the outermost energy level
  4. 11. Atoms of the same element with different numbers of neutrons
  5. 14. Negatively charged particle found outside the nucleus
  6. 16. Positively charged particle in the nucleus
  7. 19. Number of protons in an atom
  8. 20. Ability of a material to conduct electricity
  9. 22. Weighted average of an element’s isotopes
  10. 23. Elements that are typically shiny and conduct electricity well
Down
  1. 1. How easily an element reacts with other substances
  2. 2. Vertical column on the periodic table
  3. 3. Elements that are poor conductors and often gases
  4. 5. Metals found in Groups 3–12 of the periodic table
  5. 6. Average mass of an element’s isotopes
  6. 7. Soft, very reactive metals in Group 1
  7. 10. Dense center of the atom containing protons and neutrons
  8. 12. Region around the nucleus where electrons are likely found
  9. 13. Smallest unit of an element that retains its properties
  10. 15. Horizontal row on the periodic table
  11. 17. Total number of protons and neutrons in an atom
  12. 18. Neutral particle found in the nucleus
  13. 21. Specific region where electrons are found around the nucleus