isomer

1. (physical)Any of two or more compounds with the same molecular formula but with different structure.

   Isomer

   изоме́рizomér

   a compound that exists in forms having different arrangements of atoms but the same molecular weight

2. Any of two or more atomic nuclei with the same mass number and atomic number but with different radioactive properties.

   Kernisomer

   изоме́рizomér

1. What are cis and trans isomers?

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regular

• isomerealternative archaic