Across
- 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. equation - a representation of a chemical reaction in which the reactants and products are expressed as formulas
- 6. dot diagram - a diagram of an atom, ion or molecule in which each dot represents a valence electron
- 9. formula - notation that shows what elements a compound contains and the ratio of the atoms or ions of these elements in the compound
- 11. - a substance that undergoes change in a chemical reaction
- 12. energy - the energy stored in chemical bonds
- 13. - an atom or group of atoms that has a positive or negative charge
Down
- 1. - new substances formed as a result of a chemical reaction
- 2. - a neutral group of atoms that are joined together by one or more covalent bonds
- 5. bond - the force that holds cations and anions together
- 7. bond - the force that holds atoms or ions together as a unit
- 8. bond - a chemical bond in which two atoms share a pair of valence electrons
- 10. bond - the attraction between a metal cation and the shared electrons that surround it