Across
- 3. -an aton or molecule having an electric charge
- 4. -mass in grams of one mole substance
- 7. -outermost electron
- 9. -representing the composition of a substance by using chemical symbols
- 10. -negatively charged ion
- 12. -compounds which contain 3 different elements
- 15. -transfer of electrons from one atom to another
Down
- 1. -NaCl
- 2. -this type of bond exists between non-metals
- 5. -energy needed to remove an electron from the neutral atom
- 6. -written in the lowest integer subscripts
- 8. -positively charged ion
- 11. -atoms must possess an 8 valence electrons to be stable
- 13. -third type of chemical bonding
- 14. -molecular weightof a substance expressed in grams