Across
- 2. OH- ion ionised completely in water
- 3. table that contain all elements
- 6. chemical bond between non-metal and non-metal
- 8. energy that bring things closer/farther
- 9. bond sea of electron
- 11. positive subatomic
Down
- 1. negative subatomic
- 2. H+ ion ionised completely in water
- 4. outermost electron
- 5. chemical bond between metal and non-metal
- 7. smallest matter
- 10. substance that speeds up reaction