Tyler Ackerman Chapter 9

12345678
Across
  1. 4. An atom that carries an electrical charge
  2. 5. No electrical charge
  3. 6. Negative charged particles
  4. 7. = number of protons
  5. 8. Two atoms with different numbers of neutrons
Down
  1. 1. An electron in the outermost energy level of an atom
  2. 2. Positively charged particles
  3. 3. Used for things that are too small or too large to be observed