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Answer:
D. They are formed when lighter elements are pulled together by gravity to form a planet.
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The elements with more than 2 protons, such as the carbon in our cells, form when lighter elements are pulled together by gravity to form a planet. The correct option D.
What are elements?
Elements are a substance that has a given number of proton in the nuclei, and they can not be divided into any simpler form in a chemical reaction. Elements are present in the periodic table.
The elements that have 2 protons are formed when the lighter elements collide together in the earth from gravity and constitute a new element.
Thus, the correct option D. They are created when lighter elements are pulled together by gravity to constitute a planet.
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