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Introduction

Helium-3 (³He) is a rare, stable isotope of helium consisting of two protons and one neutron, unlike the more common helium-4 isotope which has two neutrons. It is a non-radioactive, light gas with unique nuclear and cryogenic properties, making it valuable for applications in nuclear fusion, cryogenics, neutron detection, and medical imaging.

Helium-3 has drawn significant global attention for its potential as a future fuel for clean nuclear fusion energy, due to its ability to produce power with minimal radioactive waste and high efficiency. However, its extreme scarcity on Earth has limited its availability and increased its strategic importance.

Physical and Chemical Properties

PropertyDescriptionChemical Symbol³HeAtomic Number2Atomic Mass3.016 uState at Room TemperatureGasDensity0.000134 g/cm³Melting Point-272.2°CBoiling Point-268.9°CStabilityStable (non-radioactive)Color & OdorColorless, odorless, and inert

Helium-3 behaves similarly to regular helium in chemical terms but has distinct quantum mechanical and nuclear properties, making it highly sought after for specialized scientific and energy applications.