2019
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Universe’s first molecule that formed almost 14 billion years ago, recently detected by NASA is ______
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Hydrogen sulfide
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Tributyltin hydride
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Helium hydride
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Beryllium oxide
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Explanation:
Detailed explanation-1: -The new compound of helium and hydrogen was called helium hydride or helonium (HeH+), the very first molecule (of any sustained abundance) in the universe.
Detailed explanation-2: -We can trace the history of our universe back about 14 billion years, to a fiery period known as the Big Bang. At that time, the universe was extremely hot and dense. In fact, all the matter we observe today - out to the furthest galaxies we can see - was packed into a space smaller than a grapefruit.
Detailed explanation-3: -The first elements - hydrogen and helium - couldn’t form until the universe had cooled enough to allow their nuclei to capture electrons (right), about 380,000 years after the Big Bang.
There is 1 question to complete.