Use toothpicks and gumdrops or jelly beans of different colors to build models of the molecules shown in Figures 15.17 through 15.19 and Figure 15.21, letting the different colors represent different elements. Once you have become proficient at building these models, test your expertise by building models for difluoromethane, CH₂F₂; ethane, C₂H₆; hydrogen peroxide, H₂O₂; and acetylene, C₂H₂. Keep in mind that each carbon atom must have four covalent bonds, each oxygen atom must have two, and each fluorine and hydrogen atom must have only one.

Figure 15.17

Transcribed Image Text:

Covalent bond Bond forming +9 +9 Fluorine atom, F Fluorine atom, F Fluorine molecule, F2