GK
BIG BANG THEORY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
It took ____ minutes for the first atomic nuclei to form
|
|
1
|
|
|
2
|
|
|
3
|
|
|
4
|
Explanation:
Detailed explanation-1: -In a nutshell, in the first three minutes after the Big Bang, the protons and neutrons began fusing, forming deuterium, and the deuterium atoms then joined up with each other, forming helium-4.
Detailed explanation-2: -Nucleosynthesis didn’t start before the one-minute mark because the universe was too hot for nuclear fusion. Nucleosynthesis stopped a few minutes later because the universe became too cold.
Detailed explanation-3: -During the first three minutes of the universe, most of the deuterium combined to make helium. Trace amounts of lithium were also produced at this time.
There is 1 question to complete.