| A | B |
|---|
| chemical bonding | the joining of atoms to form new substances |
| chemical bond | a force of attraction that holds two atoms together |
| valence electrons | the electrons in the outermost energy level of a atom |
| ionic bond | the force of attraction between oppositely charges ions |
| ions | charged particles that form during chemical changes when one or more valence electrons transfer from one atom to another |
| crystal lattice | a repeating three-dimensional pattern of ions |
| covalent bond | the force of attraction between the nuclei of atoms and the electrons shared by the atoms |
| molecule | a neutral group of atoms held together by covalet bonds |
| metallic bond | the force of attraction between a positively charged metal ions and the electrons in metal |
