Atoms 2025

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Across
  1. 4. element with a symbol "No"
  2. 5. particles with a neutral charge
  3. 8. element that we breathe
  4. 9. the team Mr. Cooper wants to win field day
  5. 10. the lowermost number in an element square
  6. 11. the number in the element square at the top
  7. 12. element with 125 Neutrons
  8. 13. particles with a negative charge
  9. 16. used in necklaces and jewelry
Down
  1. 1. element used in balloons
  2. 2. element with 27 protons
  3. 3. particles with a positive charge
  4. 4. center of the atom
  5. 6. element with atomic mass of 133
  6. 7. type of ion with more electrons than protons
  7. 9. type of ion with more protons than electrons
  8. 14. element with 50 electrons
  9. 15. where electrons are found in atom (begins with "o")