Across
- 4. Elements in Group 1 are called ______ metals
- 5. The center of an atom
- 8. Scientist who proposed the modern periodic law
- 9. Elements present in Group 17
- 10. Vertical columns in the periodic table
Down
- 1. Elements that lose electrons easily
- 2. Negatively charged particles in an atom
- 3. Property of elements to attract electrons
- 5. Group of elements with full valence shell
- 6. Elements with properties of both metals and non-metals
- 7. Horizontal rows in the periodic table