Across
- 4. a strong base that dissolve in water
- 6. this animal loves banana
- 7. an indivisible And basic unit of matter
- 9. NH3
- 10. negative ions are called
- 11. the center of an atom is called
Down
- 1. basic unit of light and all other electro magnetic radiation
- 2. this animal has a long trunk
- 3. striped animal that looks like a horse
- 5. blue litmus paper turn ___ under acidic conditions
- 6. anything that had mass and occupies volume
- 8. COVID-19
- 12. a small animal with soft for that people offer keep as a pet