periodic table and atoms

12345678910111213141516
Across
  1. 4. given by atomic number
  2. 5. region of probability of finding electrons in electon cloud
  3. 7. Fluorine and Chlorine just to name two
  4. 8. pure substance cannot be decomposed all atoms have the same number of protons
  5. 10. formed when atoms lose or gain electrons
  6. 12. Si and Ge just to name two
  7. 15. electrons in lowest available enrgy levels
  8. 16. luster malleable and conductors
Down
  1. 1. the outermost resposible for chemical properties
  2. 2. brittle solids and gases and a liquid
  3. 3. group 18 not chemically reactive
  4. 6. same number of protons different number of neutrons
  5. 9. high in nonmetals. Attracts electrons
  6. 11. column of elements going down with similar chemical properties
  7. 13. most active metals group 1
  8. 14. row of elements with the same number of energy levels