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tigry1 [53]
3 years ago
9

Which of the following elements are non-reactive because their outer electron energy levels are full?

Physics
1 answer:
Marta_Voda [28]3 years ago
5 0
It would be Krypton, one of the noble gases. 
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Answer:

The Sun produces energy by the process of nuclear fusion. Nuclear fusion occurs when lighter nuclei combine to produce a larger, heavier nucleus. In the process, energy is released. Nuclear fusion requires very high temperatures and pressures. Nuclear fusion occurs in the core of the Sun when hydrogen atoms combine to form helium atoms.

Explanation:

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A radio telescope helped the astronomers discover the CMB.

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