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Author: WikiMatrix
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English[en]
A few minutes into the expansion, when the temperature was about a billion (one thousand million) kelvin and the density was about that of air, neutrons combined with protons to form the universe's deuterium and helium nuclei in a process called Big Bang nucleosynthesis.
Indonesian[id]
Beberapa menit semasa pengembangan, ketika temperatur sekitar satu miliar Kelvin dan rapatan alam semesta sama dengan rapatan udara, neutron bergabung dengan proton dan membentuk inti atom deuterium dan helium dalam suatu proses yang dikenal sebagai nukleosintesis ledakan dahsyat.