Big Brain Science

1234567891011
Across
  1. 2. On the periodic table,____ are the opposite of periods.
  2. 4. The ____(s) of an atom located in the nucleus.
  3. 5. All compounds are ____.
  4. 6. The ____ includes zinc, radium, and potassium.
  5. 9. A ____ is made up of different atoms bonded together.
  6. 10. The atomic number is how many ____ there are.
  7. 11. Elements are made up of ____.
Down
  1. 1. The ____ is also known as how many protons there are.
  2. 3. ____ are the rows on the periodic table.
  3. 7. An ____ is not bonded.
  4. 8. If you know the number of protons you know the number of ____.