What key event took place during the atomic epoch?
A)The universe expanded and cooled enough to allow the first particles to appear.
B)The universe expanded and cooled enough for electrons to orbit protons.
C)The neutrinos were created.
D)Atoms in the universe collected to form stars and galaxies.
E)The universe underwent a brief period of rapid expansion.

Question

Quizplus · Accepted Answer

During the atomic epoch, the universe had expanded and cooled enough for electrons to orbit protons, leading to the formation of atoms which eventually led to the formation of stars and galaxies. The atomic epoch is characterized by the universe cooling enough for electrons to orbit protons and form neutral atoms, allowing for the first light to be emitted.

What Key Event Took Place During the Atomic Epoch