Nucleosynthesis began when _ and ended when _

A. the Big Bang occurred; the Big Crunch occurred

B. nuclear reactions could first occur; matter had condensed into galaxies and stars C. the cosmic microwave background radiation formed; dark energy replaced it as the dominant energy form

D. the universe had cooled enough for atoms to combine; protons and neutrons were too far apart to form nuclei

Question

19-03-2020
Chemistry

contestada

Nucleosynthesis began when _ and ended when _

A. the Big Bang occurred; the Big Crunch occurred

B. nuclear reactions could first occur; matter had condensed into galaxies and stars C. the cosmic microwave background radiation formed; dark energy replaced it as the dominant energy form

D. the universe had cooled enough for atoms to combine; protons and neutrons were too far apart to form nuclei

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FrightfulMarty FrightfulMarty · Answer 1 · 2020-03-23T10:36:35+01:00

Nucleosynthesis.

Explanation:

A. the Big Bang occurred; the Big Crunch occurred

Nucleosynthesis is the process by which new atomic nucleus are formed from pre-existing protons and neutrons.

According to cosmic theories, the nucleosythesis began one minute after the occurrence of Big bang and will end with the big Crunch.

The Big bang theory describes all the processes by which the universe came into existence while the big crunch theory explains how universe will come to an end. A