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During the first _____ of the universe's history, atoms could not exist.

a. second

b. 3 minutes

c. 157 hours

d. 45 months

Respuesta :

znk

None of the above.

By 3 min after the Big Bang, the universe had cooled down for nuclei to form.

It took 380 000 years for the universe to cool down enough that electrons could be trapped in orbits around nuclei and form the first atoms.

Answer:

the answer is b 3 seconds

Explanation:

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