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