Across
- 1. Earth group number 2
- 3. A small particle in the nucleus of an atom with no charge.
- 5. group 3 period 6
- 6. vertical columns
- 9. the ease and speed with which an element or compound combines with other elements and compounds.
- 12. horizontal rows
- 13. A tinny negatively charged particle that moves around the nucleus of an atom.
- 14. the smallest particle of an element.
Down
- 2. group 1 just Hydrogen
- 4. groups 13-17 found along the Zigzag
- 7. group 3 period 7
- 8. Table a chart of elements showing the repeating patterns of their properties.
- 10. Mass mass of the Nucleus
- 11. A small positively charged particle in the nucleus of an atom.