Vikas TU
Last Activity: 4 Years ago
Its nucleus is identical to an alpha particle, and consists of two protons and two neutrons. Alpha decay of heavy elements in the Earth's crust is the source of most naturally occurring helium-4 on Earth, produced after the planet cooled and solidified.
Isotope mass: 4.002602 u
Protons: 2
Names: helium-4, He-4
Binding energy: 28300.7 keV