Organic Chemistry/Foundational concepts of organic chemistry/Acids and bases/Electrophiles and nucleophiles
Electrophiles are "electron-lovers". (The suffix -phile means "lover of", as bibliophile means "lover of books"). Electrophiles seek electrons.
Nucleophiles, or "nucleus lovers", seek positively charged nuclei.
Electrophiles and nucleophiles are often ions, but sometimes not.