Periodic Table Crossword By Rylie Restivo

1234567891011121314151617181920
Across
  1. 4. Atomic mass is the number of protons plus the number of ________________.
  2. 8. Atomic number is the number of _________________ an atom has.
  3. 10. A ____________ model has the number of electrons and rings.
  4. 13. Particles with a -1 charge that occupies the space around the nucleus.
  5. 16. Smallest particle of an element that retains the elements properties.
  6. 18. Negatively charged ion.
  7. 19. Elements that are shiny and good conductors.
  8. 20. An electron _____________ model is the most accurate model.
Down
  1. 1. Bond between nonmetals.
  2. 2. Group 17 on the Periodic Table.
  3. 3. Atoms of the same elment that have a different number of neutrons.
  4. 5. Rows (across) on the Periodic Table.
  5. 6. An atom with charge.
  6. 7. Columbs (up/down) on the Periodic Table.
  7. 9. ______________ gases are also called nonmetals.
  8. 11. An electron _________ model has the element symbol and valence electrons.
  9. 12. Metals are found on the ___________ side of the stair step on the Periodic Table.
  10. 14. Positively charged ion.
  11. 15. Elements that are dull, brittle, and often a gas at room temperature.
  12. 17. The positively charged center of the atom.