In nuclear chemistry, this term can refer to a metastable nuclide produced by gamma decay, though the more typi- cal form of this concept can also indicate the inertness of complex ions. Alfred Werner employed this concept to re- place chain theory with coordination theory, and ambident ligands are key to explaining the linkage type of this con- cept. Friedrich Woehler provided the first evidence of this concept by comparing ammonium cyanate and urea, while optical activity is the only means of 
In nuclear chemistry, this term can refer to a metastable nuclide produced by gamma decay, though the more typi- cal form of this concept can also indicate the inertness of complex ions. Alfred Werner employed this concept to re- place chain theory with coordination theory, and ambident ligands are key to explaining the linkage type of this con- cept. Friedrich Woehler provided the first evidence of this concept by comparing ammonium cyanate and urea, while optical activity is the only means of separting enantiomeric examples like L- and D-glyceraldehyde. Also describing re- lationships such as cis versus trans fatty acids and butane versus methylpropane, identify this concept in which two compounds have the same molecular formula but a different arrangement of atoms.
In nuclear chemistry, this term can refer to a metastable nuclide produced by gamma decay, though the more typi- cal form of this concept can also indicate the inertness of complex ions.
isomerism