Across
- 1. A periodic table family with elements that contain seven valence electrons.
- 3. Ionization energy is a _______ property.
- 6. Horizontal rows in the periodic table
- 7. Ionization energy ______ across a period.
- 8. Atomic radius is measured in what unit?
- 10. The least reactive family
- 12. The ability of an atom to accept an electron.
Down
- 2. Half the distance between two atoms.
- 4. The amount of energy required to remove one or more electrons from the atom to form a positive ion.
- 5. Atomic radius _______ across a period.
- 9. How likely an atom is to react with other substances.
- 11. Vertical columns in the periodic table
- 12. The ability of an atom to attract or bind with electrons.