Reactions of Alkenes Since o bonds are stronger than nt bonds,double bonds tend to react to convert the double bond into o bonds >+xY This is an addition reaction (Other types of reaction have been substitution and elimination). Addition reactions are typically exothermic. Electrophilic Addition The it bond is localized above and below the C-C o bond.The it electrons are relatively far away from the nuclei and are therefore loosely bound. half of n bond o bond held tightly half of n bond empty p orbital An electrophile will attract those electrons,and can pull them away to form a new bond. This leaves one carbon with only 3 bonds and a +ve charge (carbocation). The double bond acts as a nucleophile(attacks the electrophile). Cho8 Reacns of Alkenes (landscape) Page ICh08 Reacns of Alkenes (landscape) Page 1 Reactions of Alkenes Since  bonds are stronger than  bonds, double bonds tend to react to convert the double bond into  bonds This is an addition reaction. (Other types of reaction have been substitution and elimination). Addition reactions are typically exothermic. Electrophilic Addition The  bond is localized above and below the C-C  bond. The  electrons are relatively far away from the nuclei and are therefore loosely bound. An electrophile will attract those electrons, and can pull them away to form a new bond. This leaves one carbon with only 3 bonds and a +ve charge (carbocation). The double bond acts as a nucleophile (attacks the electrophile). + X-Y X Y