Helium4Atome

Helium4Atome refers to a single atom of the isotope Helium-4. Helium-4 is the most common isotope of the element helium, comprising about 99.99986% of all naturally occurring helium. It has an atomic nucleus consisting of two protons and two neutrons, and it is orbited by two electrons. This specific configuration of protons and neutrons makes Helium-4 a stable isotope, meaning it does not undergo radioactive decay. Its stability is a key factor in its abundance.

The properties of Helium-4 atoms are fundamental to understanding helium's behavior. As a noble gas, helium atoms are largely unreactive due to their filled electron shells. Helium-4 atoms are very light and have a very low boiling point, making liquid helium-4 a substance with unique quantum mechanical properties, such as superfluidity. These properties are distinct from those of Helium-3, another isotope of helium which has only one neutron in its nucleus and exhibits different quantum behaviors. The study of Helium-4 atoms has been crucial in fields ranging from nuclear physics to condensed matter physics, contributing to advancements in areas like cryogenics and particle detection.