periodic table

1234567
Across
  1. 2. where are electrons
  2. 3. what is one way the periodic table
  3. 6. what is on the periodic table
  4. 7. what is on the shells
Down
  1. 1. what is a neutral charge
  2. 4. what does the atomic number stand for
  3. 5. a way of saying how reactive it is