Across
- 5. element with the greatest electronegativity
- 6. group with 7 valence electrons
- 8. nonreactive or inert elements
- 11. elements that exhibit properties of metals and nonmetals
- 12. ability of an atom to attract electrons from another atom in a chemical bond
- 14. collection of elements in groups 3-12
- 16. credited with creating the periodic table
- 18. modernized the periodic table by listing according to atomic number
Down
- 1. group 1 on the periodic table
- 2. indicates the charge on an atom after it has gained or lost electrons
- 3. amount of energy required to remove an electron from an atom
- 4. elements that are typically either brittle solids or gases at room temperature
- 7. group 2 on the periodic table
- 9. inner core electrons block the pull of the nucleus
- 10. electrons in the outermost energy level
- 13. element with the largest atomic radius
- 15. element in period 4 and group 16
- 17. elements that are typically shiny, malleable and conductive