Fundamentals of Chemistry

Edit Answers
12345678910111213141516171819202122232425
Across
  1. 5. atom with diff. # neutrons than a. of same elem.
  2. 7. atom releases energy stablizes nucleus
  3. 10. grows bigger than atom when it gains electrons.
  4. 13. very reactive metals, group one
  5. 16. positively charged particle in nucleus
  6. 17. the central region of an atom
  7. 18. particle with no electric charge
  8. 19. change # of protons the element changes
  9. 22. groups 3-12
  10. 23. not reactive elements
  11. 24. neg. charged particle
  12. 25. element series 90-103
Down
  1. 1. elements series 58-71
  2. 2. horizontal row in periodic table
  3. 3. element that is good conducter of electricity
  4. 4. where an electron could be if measured
  5. 6. the number of protons in nucleus
  6. 8. an atom that has pos. or neg. electric charge
  7. 9. element with prop. of both metals and non-metals
  8. 11. group 17, combine easily w/ other elements
  9. 12. element that has opposite prop. of metal
  10. 14. smaller than atom when it loses electrons
  11. 15. reactive metals than group 1, group 2
  12. 20. vertical column in periodic table
  13. 21. atomic mass unit