GK
BIG BANG THEORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Hydrogen
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Helium
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Lithium
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Beryllium
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Detailed explanation-1: -Scientists believe that around 100, 000 years after the big bang, helium and hydrogen combined to make a molecule called helium hydride for the first time. Helium hydride should be present in some parts of the modern universe, but it has never been detected in space-until now.
Detailed explanation-2: -Of these three, helium was the first to begin forming “real” atoms. An atom is more than a nucleus-it must also possess electrons. Helium nuclei were the first to gather a full purse of electrons en masse. Why not hydrogen or lithium?
Detailed explanation-3: -In the beginning, or at least following the Big Bang more than 14 billion years ago, there was hydrogen, some helium and a little bit of lithium.
Detailed explanation-4: -Approximately 73% of the mass of the visible universe is in the form of hydrogen. Helium makes up about 25% of the mass, and everything else represents only 2%.