isotope
Neutron count varies
Isotopes are variants of a chemical element that share the same number of protons but differ in neutrons.
Carbon-12 and carbon-14 are isotopes of carbon.
Some isotopes are stable; others are radioactive and decay over time.
Radioactive isotopes have applications in medicine, archaeology, and nuclear energy: Carbon-14 isotope dating revealed the artifact was 3,000 years old.
Central controlling part
- neutronUncharged nuclear particle
- protonPositive nuclear particle
- nucleonProton or neutron
- nucleosynthesisAtomic core formation process
Gradual organic breakdown
- half-lifePeriod for fifty-percent reduction
- radiationEnergy propagation through space
- radioactivitySpontaneous nuclear decay
- gamma-rayHighest-energy electromagnetic wave
uranium · plutonium · radium · thorium · polonium · cesium · strontium · iodine-131
Simplest atomic element
- deuteriumHydrogen isotope with neutron
- tritiumHydrogen's radioactive isotope
- carbonSixth element, atomic symbol C
- oxygenElement eight, colorless gas
nitrogen · sulfur · chlorine · strontium · lead · uranium · thorium · potassium
Dividing into parts
- spectroscopyStudy of light-matter interaction
- couplingJoint between systems
- transitionChange from one state
- magneticAttracting iron or attention
nuclear · spin · electron · frequency · shift · structure · fine · interaction
Not emitting nuclear particles
- primordialExisting from the start
- deuteriumHydrogen isotope with neutron
- carbon-12Stable carbon isotope
- carbon-13Seven-neutron carbon isotope
oxygen-16 · oxygen-18 · nitrogen-15 · enrichment · depletion
Decaying carbon isotope
- carbon-14Radioactive isotope for dating
- potassium-argonIsotopic age-determination technique
- uranium-leadIsotopic age-determination method
- half-lifePeriod for fifty-percent reduction
geochronology · radiometric · zircon · fossils · artifacts · stratigraphy · dendrochronology · paleoclimatology
State of being apart
- centrifugeSpinning density-separation device
- yellowcakeConcentrated uranium oxide powder
- cascadeSuccessive downward flow
- proliferationRapid increase in quantity
Ion beam surface analysis
- ionizationCharge acquisition process
- calibrationAdjusting for measurement accuracy
Earth's chemical makeup science
- biogeochemistryStudy of life-driven elemental cycles
- paleoclimatologyStudy of prehistoric climates
- hydrologyScience of water distribution
- provenanceRecord of ownership
Assigning identifying markers
- PETNuclear medicine imaging
- SPECTGamma-emitting radiotracer imaging method
- radiopharmaceuticalMedicinal radioactive substance
- incorporationForming a legal entity
turnover · biodistribution · pharmacokinetics · technetium-99m
nucleus
Central controlling part
decay
Gradual organic breakdown
- half-lifePeriod for fifty-percent reduction
- radiationEnergy propagation through space
- radioactivitySpontaneous nuclear decay
gamma-ray · uranium · plutonium · radium · thorium · polonium · cesium · strontium · iodine-131 · tritium
hydrogen
Simplest atomic element
- deuteriumHydrogen isotope with neutron
- tritiumHydrogen's radioactive isotope
- carbonSixth element, atomic symbol C
oxygen · nitrogen · sulfur · chlorine · strontium · lead · uranium · thorium · potassium · argon
splitting
Dividing into parts
- spectroscopyStudy of light-matter interaction
- couplingJoint between systems
- transitionChange from one state
magnetic · nuclear · spin · electron · frequency · shift · structure · fine · interaction · level
nonradioactive
Not emitting nuclear particles
- primordialExisting from the start
- deuteriumHydrogen isotope with neutron
- carbon-12Stable carbon isotope
carbon-13 · oxygen-16 · oxygen-18 · nitrogen-15 · enrichment · depletion
radiocarbon
Decaying carbon isotope
- carbon-14Radioactive isotope for dating
- potassium-argonIsotopic age-determination technique
- uranium-leadIsotopic age-determination method
half-life · geochronology · radiometric · zircon · fossils · artifacts · stratigraphy · dendrochronology · paleoclimatology · archaeology
separation
State of being apart
- centrifugeSpinning density-separation device
- yellowcakeConcentrated uranium oxide powder
- cascadeSuccessive downward flow
SIMS
Ion beam surface analysis
- ionizationCharge acquisition process
- calibrationAdjusting for measurement accuracy
geochemistry
Earth's chemical makeup science
- biogeochemistryStudy of life-driven elemental cycles
- paleoclimatologyStudy of prehistoric climates
- hydrologyScience of water distribution
provenance · sediments · mantle · crustal
labeling
Assigning identifying markers
- PETNuclear medicine imaging
- SPECTGamma-emitting radiotracer imaging method
- radiopharmaceuticalMedicinal radioactive substance
incorporation · turnover · biodistribution · pharmacokinetics · technetium-99m
- nuclear physicsnuclear energy, fission, nuclear fission, neutron, proton
- radiobiologyradiobiology, DNA damage, mutations, ionizing radiation, cell damage
- Isotope Tracerstracer, tritium, deuterium, carbon-14, carbon-13
- sciencebiology, chemistry, physics, astronomy, geology
- atomic physicsatom, atoms, atomic nucleus, electron, atomic number
- atomic scienceatom, electron, proton, neutron, nucleus
- radioactive isotopesUnstable atomic forms emitting particles
- oxygen isotopesNuclear variants of element eight
- isotope geochemistryStudy of atomic variants in nature
- carbon isotopesCarbon atoms differing in neutrons
oxygen isotopes, isotopes, isotopic, radioisotope, radioisotopes