The Periodic Table

Edit Answers
12345678910111213141516171819
Across
  1. 6. the abbreviation of the element name
  2. 7. The symbol for this element is H
  3. 11. the different version of an element
  4. 13. First to name the atom
  5. 14. shows the number of valence electrons an element has
  6. 16. the center of an atom
  7. 17. positive charge
  8. 18. The symbol for this element is Ar
  9. 19. negative charge
Down
  1. 1. name of the element - mass number
  2. 2. created the plum pudding model
  3. 3. smallest known particle
  4. 4. The symbol for this element is B
  5. 5. The creater of the Bohr model
  6. 8. what surrounds the nucleus
  7. 9. shows how many energy levels an element has
  8. 10. The number of protons and neutrons
  9. 12. The symbol for this element is C
  10. 15. The smallest particle of an element
  11. 16. neutral charge