Atoms and the Periodic Table

Edit Answers
12345678910111213141516171819202122232425262728
Across
  1. 4. group 2A on the periodic table
  2. 6. positive subatomic particle
  3. 7. first person to propose the idea of atoms
  4. 13. number of periods on the periodic table
  5. 14. group 1A on the periodic table
  6. 15. smallest particle of matter
  7. 17. atoms with the same numbers of protons but differents of neutrons
  8. 18. number of groups on the periodic table
  9. 21. number of protons + neutrons in an atom
  10. 25. columns on the periodic table
  11. 26. plum pudding model
  12. 27. make up the right side of the periodic table
  13. 28. negative subatomic particle
Down
  1. 1. group 7A on the periodic table
  2. 2. father of the modern periodic table
  3. 3. neutral subatomic particle
  4. 5. number of protons in an element
  5. 8. a majority of the elements on the periodic table
  6. 9. element with an atomic mass of 87.62
  7. 10. location of protons and neutrons in an atom
  8. 11. elements with properties of both metals and nonmetals
  9. 12. first atomic theory based on evidence
  10. 16. metal that is liquid at room temperature
  11. 19. element with an atomic number of 6
  12. 20. rows on the periodic table
  13. 22. group 8A on the periodic table
  14. 23. nonmetal that is liquid at room temperature
  15. 24. gold foil experiment