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