Across
- 1. Shares hydrogen
- 5. equal
- 9. Atomic number 1
- 10. gains electrons
- 13. losses electrons
- 14. Dissolves substance
- 15. Takes hydrogen
- 16. reaction has fully stopped
- 17. No fixed shape
- 18. Gets dissolved
- 19. Tested subject
- 20. How acidic or basic
Down
- 2. same atomic number different mass
- 3. still room to dissolve substance
- 4. orbitals around nucleus
- 6. fixed volume
- 7. theory of project
- 8. sharing of electrons between atoms
- 11. Measure of heat
- 12. same number of neutrons and protons