Electronic structure

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Across
  1. 2. This number on the periodic table can be looked at to find out how many electrons are on the outer shell of an atom
  2. 4. The electrons in this shell determine how the atom will react
  3. 6. To find out how many electrons an atom has, we need to look at this on the periodic table
  4. 9. The maximum number of atoms on the second or third energy level
  5. 10. Electrons are found in these around the nucleus
Down
  1. 1. The number of electrons on the first shell (energy level)
  2. 3. The number of electrons in an atom is the same as the number of
  3. 5. Elements in the same group will always react in a ........way.
  4. 7. Atoms have no overall .......
  5. 8. another word for the shells