noun Download 🔗Share Any of two or more compounds with the same molecular formula but with different structure. Examples : "Glucose and fructose are isomers; they both have the same chemical formula but different molecular structures. " chemistry compound substance science Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share Any of two or more atomic nuclei with the same mass number and atomic number but with different radioactive properties. Examples : "Scientists discovered that although these two cobalt isotopes have the same number of protons and neutrons, one isomer decays much faster than the other. " physics chemistry biochemistry science Chat with AIVocabulary GamePractice Reading