<p><strong>Fig. 2.8.</strong> Elements can be made of one atom, like He, or be elemental molecules, such as hydrogen (H<sub>2</sub>), oxygen (O<sub>2</sub>), chlorine (Cl<sub>2</sub>), ozone (O<sub>3</sub>), and sulfur (S<sub>8</sub>). Atoms are not drawn to scale.</p>

Fig. 2.8. Elements can be made of one atom, like He, or be elemental molecules, such as hydrogen (H2), oxygen (O2), chlorine (Cl2), ozone (O3), and sulfur (S8). Atoms are not drawn to scale.

Image by Bryon Inuoye