monoanionic
Monoanionic refers to a chemical species that carries a single negative charge. This charge arises from the gain of one electron by a neutral atom or molecule. For instance, a halide ion like chloride (Cl-) is monoanionic, having gained one electron to achieve a stable electron configuration. Similarly, hydroxide ion (OH-) is another common example of a monoanionic species. In organic chemistry, carbanions, which are carbon atoms bearing a negative charge, are often monoanionic. The term is used to distinguish these species from those with multiple negative charges, such as dianionic or trianionic species. Understanding the charge of an ion is crucial in predicting its chemical behavior, reactivity, and interactions with other molecules. Monoanionic species are typically attracted to positively charged species or regions of positive charge.