Chemical bonding occurs when atoms interact and share or transfer electrons to achieve a stable electron configuration. Atoms are least likely to react when their valence shell is filled with electrons. Atoms can achieve a stable configuration by gaining or losing electrons through reactions with other atoms to fill their valence shell.

1. CHEMICAL BONDING

2. •Least likely to react when...
•...valence shell electrons are filled
ATOM REACTIONS

3. Ways To Achieve A Stable Electron Configuration
•Gain an electron
•Lose an electron
STABLE ELECTRON
CONFIGURATION