Many compounds of group 3 elements have chemical behavior that reflects an electron deficiency
A. What meaning of electron deficiency
B.Give one reaction that illustrates this behavior.
A. Electron deficiency refers to a situation where an atom or molecule has fewer electrons than it would need to have a stable electronic configuration, typically resulting in increased reactivity or a tendency to form chemical bonds with other atoms or molecules.
B. One reaction that illustrates this behavior is the reaction between boron trifluoride (BF3) and ammonia (NH3) to form the Lewis acid-base adduct BF3NH3. In this reaction, BF3 serves as an electron-deficient Lewis acid, which can accept a pair of electrons from an electron-rich Lewis base like NH3 to form a stable adduct. This reaction illustrates the tendency of electron-deficient compounds to react with electron-rich species in order to achieve a more stable electronic configuration.