Answer:
The elements in our universe ( Earth and planets and Sun and stars) has been categorized by us humans as the periodic table of elements. It now includes elements numbering 103 according to last count. The lightest and the first element is Hydrogen with H as its symbol with an atomic weight of one the next is Helium (He) with an atomic weight of 4 . The elements have been further classified, on the basis of their properties, which is noted to be repetitive in a periodic mode into eight groups and seven periods. The groups are further subdivided into A and B. They number 103 as of last count.
Hydrogen the lightest of all elements was formed first in the Universe from the subatomic particles that exist in great abundance followed by subsequent heavier elements.
Heavier elements were made later in the core of stars under extreme heat and pressure.
Now to answer your question,
Abundance of light elements indicates that the universe is still chemically very young and reactive and has a long life before it is converted into the less reactive heavier elements.
Explanation:
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