Across
- 6. an ion with a positive charge
- 7. a covalent bond in which electrons are not shared equally
- 8. notation that shows what elements a compound contains and the ratio of the atoms or ions of these elements in the compound
- 10. a diagram of an atom, ion or molecule in which each dot represents a valence electron
- 12. the force that holds cations and anions together
Down
- 1. a chemical bond in which two atoms share a pair of valence electrons
- 2. the attraction between a metal cation and the shared electrons that surround it
- 3. a mixture of two or more elements, at least one of which is a metal, that has the characteristic properties of a metal
- 4. the force that holds atoms or ions together as a unit
- 5. an ion with a negative charge
- 9. a neutral group of atoms that are joined together by one or more covalent bonds
- 11. an atom or group of atoms that has a positive or negative charge