Bond Lengths in a Molecule
Natural gas used in home heating and cooking is odorless. Because natural gas leaks pose the danger of explosion or suffocation, various smelly substances are added to the gas to allow detection of a leak. One such substance is methyl mercaptan, CH3SH. Use Figure to predict the lengths of the C—S, C—H, and S—H bonds in this molecule.
Which part of the periodic table (top/bottom, left/right) has the elements with the largest atoms?
▲ Figure Trends in bonding atomic radii for periods 1 through 5.
Using Figure 7.7, predict which is longer, the P—Br bond in PBr3 or the As—Cl bond in AsCl3.