Astrophysics (Index)About


(metal, Ni, atomic number 28)

Nickel (Ni) is the element with atomic number 28, symbol Ni. It has five stable isotopes.

It is thought be the product of supernova nucleosynthesis. Nickel-58 is the most common isotope; several nucleosynthesis paths lead to it. Nickel-56 is created by the alpha process, is unstable, and leading to the stable isotope iron-56 through two beta decays. Nickel-62 is very stable, having the highest binding energy of any nucleus (more than iron-56), and is not abundant because nucleosynthesis paths to it have low-probability steps.

Further reading:

Referenced by pages:
cosmic dust
iron peak element
silicon (Si)
silicon burning
superluminous supernova (SLSN)
supernova light curve (SN light curve)