Across
- 3. How likely an element is to undergo a chemical reaction
- 4. The weighted average mass of an element’s atoms
- 5. A vertical column in the periodic table
- 8. Group 2 elements, reactive but less so than Group 1
- 10. Group 18 elements, nonreactive and stable
- 14. The ability of an atom to attract electrons
- 15. An element that is dull, brittle, and a poor conductor
Down
- 1. Elements in groups 3-12,
- 2. Group 1 elements, very reactive
- 6. A table that organizes elements by atomic number and properties
- 7. An element with properties of both metals and nonmetals
- 9. An element that is shiny, malleable, and conducts electricity
- 11. A horizontal row in the periodic table
- 12. Group 17 elements, very reactive nonmetals
- 13. The number of protons in an atom’s nucleus