Across
- 4. gained an electron
- 6. horizontal on periodic table
- 7. a bond with transferred electrons
- 10. a sharing bond
- 12. 2 atoms become 1
- 16. a little bit
- 17. vertical on periodic table
- 18. Easily reacts with another chemical
- 19. To give something away
- 23. 1 atom becomes 2
- 24. Between
- 26. put together
- 27. minus sign
- 28. To have less
Down
- 1. side to side
- 2. take apart
- 3. A molecule with a plus and minus side
- 5. up and down
- 8. The time taken for half of sample to decay
- 9. electricity flows
- 11. A molecule without plus and minus sides
- 13. Intermolecular force
- 14. To get more
- 15. Break down
- 20. using it together
- 21. lost an electron
- 22. plus sign
- 25. Size of an atom