GK
THE UNIVERSE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Hydrogen
|
|
|
Helium
|
|
|
Lithium
|
|
|
Beryllium
|
Detailed explanation-1: -As atoms combined to form the first molecules, the universe was finally able to cool and began to take shape. Scientists have inferred that helium hydride was this first, primordial molecule.
Detailed explanation-2: -The first element formed in the universe is most likely the first element of our periodic table: Hydrogen. This element was synthesized when the universe had cooled down and expanded enough to allow for the formation of an atom. Hydrogen was the first element formed due to the fact that it is the simplest element.
Detailed explanation-3: -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%.