Periodic Table and Bonding

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Across
  1. 7. Dense center of atom
  2. 9. Negative charge carrier
  3. 10. Elementary light particle
  4. 14. Neutral particle in nucleus
  5. 17. Atomic mass measurement
  6. 18. Noble gas with two protons
  7. 19. Horizontal rows in table
  8. 23. CHARGE Balanced positive and negative
  9. 25. TABLE Chart listing all elements
  10. 26. Building block of matter
  11. 27. Charged atom or molecule
  12. 28. Emits particles or energy
  13. 30. Elements in vertical columns
Down
  1. 1. Shared electron bond
  2. 2. NO. Total nucleons in atom
  3. 3. Electron energy level ring
  4. 4. Nearly massless particle
  5. 5. Force acting on charged particles
  6. 6. Force linking atoms
  7. 8. Positively charged particle
  8. 11. Electron at higher energy
  9. 12. Nuclear joining process
  10. 13. Outer shell electrons
  11. 15. Periodic table founder
  12. 16. Nuclear splitting process
  13. 20. Electron’s probable location
  14. 21. NO. Number of protons in atom
  15. 22. FORCE Holds nucleus together
  16. 24. Electron transfer bond
  17. 29. Same element, different neutrons