- Romantic comedy (also known as romcom or rom-com) is a subgenre of comedy and romance fiction, focusing on lighthearted, humorous plot lines centered on romantic ideas, such as how true love is able to surmount most obstacles. In a typical romantic comedy, the two lovers tend to be young, likeable, and seemingly meant for each other, yet they are kept apart by some complicating circumstance (e.g., class differences, parental interference, a previous girlfriend or boyfriend) until, surmounting all obstacles, they are finally united. A fairy-tale-style happy ending is a typical feature.
- Ionic compound (Wikipedia)
In chemistry, an ionic compound is a chemical compound composed of ions held together by electrostatic forces termed ionic bonding. The compound is neutral overall, but consists of positively charged ions called cations and negatively charged ions called anions. These can be simple ions such as the sodium (Na+) and chloride (Cl−) in sodium chloride, or polyatomic species such as the ammonium and carbonate ions in ammonium carbonate. Individual ions within an ionic compound usually have multiple nearest neighbours, so are not considered to be part of molecules, but instead part of a continuous three-dimensional network. Ionic compounds usually form crystalline structures when solid.