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The 146 pages that link to Isotope, each with the reason it gives.

• Atomic numberRelated: Isotopes share an atomic number but have different numbers of neutrons.

• Mass spectrometryRelated: Isotopes create predictable mass patterns that help distinguish elements and molecular compositions.

• NeutronRelated: Changing a nucleus's neutron count produces a different isotope of an element.

• Beta decayRelated: Changing proton number turns the original nuclide into another element's isotope.

• Nuclear binding energyRelated: Isotopes of an element can have different masses and binding energies.

• PotassiumRelated: Potassium has several isotopes, including the naturally radioactive potassium-40.

• Atomic nucleusRelated: Isotopes share nuclear charge but differ in nuclear mass and often stability.

• OganessonRelated: Oganesson’s known atoms differ in neutron count while all remain element 118.

• Neutron captureRelated: Adding a neutron usually creates a heavier isotope of the same element.

• J. J. ThomsonRelated: Thomson’s positive-ray work revealed neon atoms with different masses, helping establish isotopes.

• Atomic massRelated: Different isotope proportions give samples of an element different average atomic masses.

• RadioactivityRelated: Isotopes of an element can differ sharply in nuclear stability.

• NihoniumRelated: Known nihonium atoms are radioactive isotopes with different neutron counts.

• GeochemistryRelated: Isotope differences underpin geochemical tracers and radiometric age measurements.

• Mass numberRelated: Isotopes share an atomic number but differ in mass number.

• NuclideRelated: The isotope concept clarified that one element can contain distinct nuclear species.

• Periodic lawRelated: Isotopes differ in mass but occupy one position because periodic order follows proton number.

• Atomic theoryRelated: Isotopes show that atoms of one element can vary in mass while retaining identity.

• Nuclear drip lineRelated: Moving across isotopes changes neutron number and can approach the neutron drip line.

• Nuclear spinRelated: Isotopes of the same element can have different nuclear spins because their nucleon counts differ.

• James ChadwickRelated: Neutrons explained how atoms of one element could have different masses.

• Molecular massRelated: Different isotopes give molecules with the same formula different masses.

• Transuranium elementRelated: Each transuranium element can have isotopes with different masses and decay rates.

• Cahn–Ingold–Prelog priority rulesRelated: When atomic numbers tie, isotopic mass can determine which substituent ranks higher.

• MoscoviumRelated: Moscovium’s known isotopes differ in neutron count and radioactive lifetime.

• Henry MoseleyRelated: Their differing masses clarified why atomic mass cannot define an element’s position.

• Inductively coupled plasma mass spectrometryRelated: Isotopes create distinct mass signals and enable isotope-ratio measurements.

• Hydrogen ionRelated: Hydrogen ions can derive from protium, deuterium, or tritium nuclei.

• ArgonRelated: Natural argon is a mixture of isotopes with different neutron counts.

• Absolute datingRelated: Dating systems distinguish isotopes that decay from those that accumulate.

• AmericiumRelated: Americium has no stable isotopes; its differing isotopes have distinct half-lives and uses.

• CoperniciumRelated: Experiments identify copernicium through particular short-lived isotopes.

• Law of definite proportionsRelated: Isotopic variation can slightly change measured mass proportions without changing chemical identity.

• TechnetiumRelated: Technetium has no stable isotopes, and its isotope determines its decay and uses.

• AstatineRelated: Astatine has no stable isotopes, so its properties depend on which radioactive isotope is considered.

• Beta particleRelated: Beta decay moves a nucleus between isotopes of neighboring elements.

• CaliforniumRelated: Californium’s isotopes share 98 protons but have different neutron counts.

• CosmochemistryRelated: Isotopic ratios preserve clues to the sources and histories of Solar System materials.

• DarmstadtiumRelated: Known darmstadtium atoms differ in neutron number and therefore in nuclear stability.

• RadionuclideRelated: Radioactive and stable isotopes can belong to the same chemical element.

• SeaborgiumRelated: Known seaborgium atoms are isotopes with different nuclear lifetimes.

• BerkeliumRelated: Berkelium exists as radioactive isotopes rather than stable, naturally abundant atoms.

• Lead(II) ionRelated: Lead isotopes can all form Pb²⁺ despite differing in neutron count.

• Standard atomic weightRelated: An element’s isotopes have different masses, creating variation in its standard atomic weight.

• RheniumRelated: Natural rhenium consists mainly of rhenium-187 and the stable isotope rhenium-185.

• CaesiumRelated: Caesium has multiple isotopes, while caesium-133 is its only stable one.

• FermiumRelated: Known fermium atoms differ chiefly by isotope, with different nuclear stability and lifetimes.

• Clifford ShullRelated: Isotopes can scatter neutrons differently, enabling contrasts between otherwise similar atoms.

• LivermoriumRelated: Livermorium is known through particular isotopes, not through a stable natural form.

• MeitneriumRelated: Observed meitnerium atoms differ in neutron count and are identified as separate isotopes.