Linked from

The 16 pages that link to Deuterium, each with the reason it gives.

• IsotopeBroader topic: It shows that isotopes can differ sharply in mass yet remain the same element.

• HydrogenBroader topic: Its extra neutron changes hydrogen’s mass and enables heavy-water chemistry.

• Big Bang nucleosynthesisBroader topic: Its primordial abundance is especially sensitive to the cosmic density of ordinary matter.

• Atomic nucleusBroader topic: Its two-nucleon nucleus is the simplest bound system of a proton and neutron.

• Hydrogen atomBroader topic: It shares hydrogen’s electron structure while its heavier nucleus shifts spectral lines.

• Proton–proton chainBroader topic: The chain’s first reaction creates deuterium, which can then capture another proton.

• Molecular hydrogenRelated: Replacing one H₂ atom with deuterium produces HD, whose emission offers a different view of cold gas.

• Heavy waterBroader topic: Heavy water contains deuterium in place of ordinary hydrogen.

• Helium-3Related: It is the common partner in proposed helium-3 fusion reactions.

• Deuterium–tritium fusionBroader topic: It is the hydrogen isotope used as the lighter reactant in this fusion reaction.

• Isotopes of hydrogenBroader topic: Its extra neutron makes it stable but roughly twice as massive as protium.

• ProtiumCompared with: Its extra neutron makes it heavier than protium while leaving its proton count unchanged.

• Harold UreyBroader topic: This is the heavy hydrogen isotope Urey’s group discovered.

• HydronBroader topic: Removing its electron gives a hydron heavier than a proton.

• Semiheavy waterRelated: Replacing one protium atom in ordinary water with deuterium produces HDO.

• Solid hydrogenCompared with: Its greater mass reduces quantum motion and shifts solid-phase behavior relative to ordinary hydrogen.