Another possibility is that only a portion of one molecule is transferred to the other molecule. This type of reaction occurs, for example, in redox and acid-base reactions. In redox reactions, the transferred particle is an electron, whereas in acid-base reactions it is a proton.
Psychology is the study of mind and behavior. It is an academic discipline and an applied science which seeks to understand individuals and groups by establishing general principles and researching specific cases.
Personality psychology is a branch of psychology that studies personality and its variation among individuals. Its areas of focus include: construction of a coherent picture of the individual and their major psychological processes; investigation of individual psychological differences