Across
- 2. Reduction of nuclear pull on outer electrons by inner electrons
- 4. Ability of an atom to attract electrons in a bond
- 7. Similar property changes within a vertical column
- 8. Pattern of properties across the periodic table
- 10. Energy needed to remove an electron from an atom
Down
- 1. How easily an element participates in chemical reactions
- 3. Electrons in the outermost energy level
- 5. Horizontal arrangement of elements on the periodic table
- 6. Size of an atom measured from nucleus to outer electrons
- 9. Vertical arrangement of elements on the periodic table