GK
BIG BANG THEORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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large amounts of atoms being produced during that era
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Neutrino Decoupling
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Escape of electrons from hydrogen atoms
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Annihilation between Hadrons and their antiparticles
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Detailed explanation-1: -Most of the hadrons and anti-hadrons were eliminated in annihilation reactions, leaving a small residue of hadrons. Upon elimination of anti-hadrons, the Universe was dominated by photons, neutrinos and electron-positron pairs.
Detailed explanation-2: -In physical cosmology, the lepton epoch was the period in the evolution of the early universe in which the leptons dominated the mass of the universe. It started roughly 1 second after the Big Bang, after the majority of hadrons and anti-hadrons annihilated each other at the end of the hadron epoch.
Detailed explanation-3: -Hadron Epoch. The Hadron Epoch lasted from 10^-6 seconds until one second (finally there!). The universe was now around 1 trillion degrees which allowed quarks to combine and form hadrons. Hadrons are subatomic particles made up of quarks, anti-quarks, and gluons.