Isotope vs. Isomer

Isotopenoun

(physics) Any of two or more forms of an element where the atoms have the same number of protons, but a different number of neutrons within their nuclei. As a consequence, atoms of isotopes will have the same atomic number but a different mass number.

Isotopeverb

To define or demonstrate an isotopy of (one map with another).

Isotopenoun

one of two or more atoms with the same atomic number but with different numbers of neutrons

Isotope

Isotopes are two or more types of atoms that have the same atomic number (number of protons in their nuclei) and position in the periodic table (and hence belong to the same chemical element), and that differ in nucleon numbers (mass numbers) due to different numbers of neutrons in their nuclei. While all isotopes of a given element have almost the same chemical properties, they have different atomic masses and physical properties.The term isotope is formed from the Greek roots isos (ἴσος ) and topos (τόπος ), meaning thus, the meaning behind the name is that different isotopes of a single element occupy the same position on the periodic table.

Isomernoun

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

Isomernoun

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

Isomernoun

A compound which is isomeric with another body or compound; a compound having the same chemical composition as another compound; a member of an isomeric series.

Isomernoun

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

Isomer

In chemistry, isomers are molecules or polyatomic ions with identical molecular formulas — that is, same number of atoms of each element — but distinct arrangements of atoms in space. Isomerism is existence or possibility of isomers.