Chemistry

12345678910111213
Across
  1. 2. the ability of an atom to attract shared electrons
  2. 5. half the diameter of an atom
  3. 6. number of protons and neutrons in a atom
  4. 8. most reactive metal group
  5. 10. tells how many electrons an ion could have
  6. 11. tells us the fixed amount of energy an atom can have
  7. 12. the amount of energy needed to remove an electrons from an atom
  8. 13. number of protons in a atom
Down
  1. 1. form salts with metals
  2. 3. elements between groups 3 and 12
  3. 4. elements that have 8 valence electrons
  4. 7. an elements ability to gain, lose, or share electrons
  5. 9. electrons in the outer energy level