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prohojiy [21]
3 years ago
14

Where do elements come from?

Biology
1 answer:
Andreyy893 years ago
6 0
When the universe was 3 minutes old, it had cooled enough for these protons and neutrons to combine into nuclei. This is known as the time of nucleosynthesis. Hydrogen<span>, </span>helium<span>, </span>lithium<span>, and </span>beryllium<span> were produced. Today, about 90% of the universe is still </span>hydrogen<span>. Your Welcome :)</span>
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