Across
- 4. Elements of group 2 of the periodic table
- 7. Elements of group 18 of the periodic table
Down
- 1. Elements of group 1 of the periodic table
- 2. Elements of group 17 of the periodic table
- 3. Law that states that the repeating chemical and physical properties of elements change periodically with the atomic numbers of the elements.
- 5. Describes something that occurs or repeats at regular intervals
- 6. A horizontal row of elements in the periodic table
- 8. Vertical column of elements in the periodic table