The Origin of Chemical Elements

The paper "The Origin of Chemical Elements" by Gamow, Alpher, and Bethe (often referred to as the αβγ paper) proposed that the chemical elements were formed in the early universe through a series of nuclear reactions following the big bang. This theory suggested that after the initial explosion, neutrons were captured by protons, forming heavier nuclei.3

While stars are now understood to be the primary sites for the synthesis of heavier elements, this early work was crucial in explaining the abundance of lighter elements like hydrogen and helium. The paper aimed to explain the observed distribution of elements, positing a primeval thermonuclear event as their origin.123