What is fusion? What elements are involved in this reaction in the sun?

Answer 1

hydrogen atoms fusing to Helium atoms and some energy is released.in Sun.

The Sun's core experiences extremely high pressure and temperature—up to 15 million degrees Celsius. This process, known as the proton-proton chain—converts four hydrogen atoms into one helium atom and converts roughly 0.7% of the mass into energy.

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Answer 2

Audrey Arnold

In the sun, hydrogen nuclei (protons) fuse to form helium nuclei. Fusion is a nuclear reaction in which two atomic nuclei join together to form a heavier nucleus.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.