Across
- 2. the name for the chemical formula NH3
- 5. the name for the chemical formula H2O
- 6. type of bond that forms from transferring electrons.
- 7. atomic number 20 on your periodic table
- 9. a substance made of more than one element
- 11. type of bond that forms from sharing electrons.
- 12. name for the guy that came up with the dot diagrams.
- 13. the name for the chemical formula CH4
- 15. the chemical formula for table salt.
- 17. a group of atoms bonded together
Down
- 1. the number of valence electrons in Argon.
- 3. shows what something looks like.
- 4. atoms want a _____ outer-energy level.
- 8. an atom with a negative charge.
- 9. an atom with a positive charge.
- 10. a combination of one or more pure substances
- 14. the name for the elements in group 17
- 16. the electrons in the outer-most energy level