And nucleophile:

Electrophiles:

- Electrophiles are electron-deficient species that seek to gain electrons.
- They have a positive or partially positive charge.
- Electrophiles are attracted to regions of high electron density in other molecules.
- They react with nucleophiles by accepting a pair of electrons to form a bond.
- Examples of electrophiles include positively charged ions, such as carbocations, and molecules with polar bonds.

Nucleophiles:

- Nucleophiles are electron-rich species that seek to donate electrons.
- They have a negative or partially negative charge.
- Nucleophiles are attracted to regions of low electron density in other molecules.
- They react with electrophiles by donating a pair of electrons to form a bond.
- Examples of nucleophiles include negatively charged ions, such as hydroxide ions (OH-), and molecules with lone pairs of electrons, such as ammonia (NH3).

In summary, electrophiles are electron-deficient species that accept electrons, while nucleophiles are electron-rich species that donate electrons.