Across
- 3. Used in computer ships manufacture beside germanium
- 6. Force that result due to sharing pair of electrons
- 8. when atom loses or gains electrons
- 10. kept under oil surface because its very reactive
- 11. Elements arranged in vertical column in periodic table
Down
- 1. Force that result when reacting atoms lose and gain electrons during chemical reaction
- 2. Number of outermost energy level electrons lost or gained during chemical reaction
- 4. tend to lose electrons during chemical reaction
- 5. tend to gain electrons during chemical reaction
- 7. said to be neutral
- 9. Horizontal raw in periodic table