Tags: Problem Solving Skills For KidsLiterature Research PaperWriting Resume Cover LettersGenie Case Study Privation32 Age Essay Gift Portrait Remarkable WomanHypertext EssayWriting Research Papers PptProblem Solving And Critical ThinkingStartup Real Estate Business PlanResearch Paper About Cancer
The second, and more common, cause is when a massive star, usually a red giant, reaches Nickel-56 in its nuclear fusion (or burning) processes.This isotope undergoes radioactive decay into Iron-56, which has one of the highest binding energies of all of the isotopes, and is the last element that can be produced by nuclear fusion, exothermically.Interestingly, the only modern nearby supernova, 1987A, has not revealed r process enrichments.
These higher temperatures allow for an environment where transuranium elements might be formed.
In nuclear fusion processes in stellar nucleosynthesis, the maximum weight for an element fused is that of iron, reaching an isotope with an atomic mass of 56.
As a result of their ejection from individual supernovae, their abundances grow increasingly larger within the interstellar medium.
Heavy elements (heavier than nickel) are created primarily by a neutron capture process known as the r process.
Big Bang nucleosynthesis produced no elements heavier than lithium.