Basic Atomic Structure

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Across
  1. 5. Smallest part of an element
  2. 7. Atom with positive or negative charge
  3. 10. Gas with two protons
  4. 12. Electrons shared between atoms
  5. 13. NO. Sum of protons and neutrons
  6. 14. Vertical column in table
  7. 15. Fundamental light particle
  8. 18. Unit for atomic mass
  9. 19. Has no electric charge
  10. 21. TABLE Elements arranged by properties
  11. 22. FORCE Keeps nucleus intact
  12. 23. Horizontal row in table
Down
  1. 1. Electrons transferred between atoms
  2. 2. NO. Counts protons only
  3. 3. Electron energy level
  4. 4. CHARGE Equal positive and negative charges
  5. 6. Area where electron is found
  6. 8. Holds protons and neutrons
  7. 9. Nucleus splits into smaller parts
  8. 11. Moves around the nucleus
  9. 13. Organized elements by weight
  10. 16. Two nuclei join together
  11. 17. Positive charge inside nucleus
  12. 20. Electron in a higher energy state