Examlex
The failure of the Lisbon Treaty meant a delay in establishing a constitution for the EU.
Electrophile
A reactive species that seeks out electrons, often forming a bond by accepting an electron pair from a nucleophile.
Nucleophile
A chemical species that donates an electron pair to an electrophile to form a chemical bond.
Curved Arrow Formalism
A notation technique in chemistry representing the movement of electrons during reaction mechanisms.
Electron Pairs
Pairs of electrons occupying the same orbital but having opposite spins; important in bond formation and molecular structure.
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