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Where did the element heavier than hydrogen and helium come from?
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Where did the element heavier than hydrogen and helium come from?

User Twibit
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Answer:

After the hydrogen in the star's core is exhausted, the star can fuse helium to form progressively heavier elements, carbon and oxygen and so on, until iron and nickel are formed. Elements heavier than that are formed in supernovas.

Step-by-step explanation:

User Yann Bodson
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They were produced inside stars.

User Burcu
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