Across
- 2. Force holding atoms together in a compound
- 6. Atoms seek eight electrons in their valence shell, a rule
- 9. Bond formed by sharing electrons
- 10. Atoms of the same element with different numbers of neutrons
- 11. Weighted average mass of an element's isotopes
- 12. Representation of a substance using symbols for its elements
Down
- 1. Bond formed by the transfer of electrons
- 3. Charged particles formed when atoms gain or lose electrons
- 4. Charge assigned to an atom in a compound
- 5. Vertical columns in the periodic table
- 7. Horizontal rows in the periodic table
- 8. Group of atoms bonded together