This page discusses the creation of ultracold polar molecules using lasers to excite Rb and K atoms into charged Rb−K compounds at near absolute zero. It highlights the sign...This page discusses the creation of ultracold polar molecules using lasers to excite Rb and K atoms into charged Rb−K compounds at near absolute zero. It highlights the significance of molecular geometry in determining polarity and its implications for aligning molecules in an electric field. The understanding of these properties is crucial for developing new reactions and materials.