How long after the Big Bang did nucleosynthesis,the combining of protons and neutrons together to form nuclei,begin to occur? A) 10^-2 seconds B) 3 minutes C) 5000 years D) 10⁹ years

Question

Quizplus · Accepted Answer

Nucleosynthesis began to occur approximately 3 minutes after the Big Bang, when the temperature cooled to about a billion Kelvin and protons and neutrons combined to form the first nuclei of hydrogen, helium, and lithium.

How Long After the Big Bang Did Nucleosynthesis,the Combining of Protons