Across
- 5. able to be dissolved
- 7. the horizontal rows of the periodic table
- 10. protons + neutrons
- 11. A + B = AB
- 13. phase change from solid to gas
- 14. AX + B = AB + X
- 17. 273K is the standard for ________
- 18. types of metals that make covalent bonds
- 19. unable to be dissolved
- 20. electrons are transferred between atoms, which makes cations and anions
Down
- 1. discovered by James Chadwick
- 2. the vertical columns of the periodic table
- 3. AB = A+B
- 4. discovered by JJ Thompson
- 6. simplest unit of an ionic compound
- 8. nitrogen, oxygen, and bromine are ____
- 9. how many sig figs is 0.239
- 12. a mixture containing particles that settle out
- 15. microscopic particles that are evenly dispersed
- 16. having 8 valence electrons