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yanalaym [24]
2 years ago
14

I need help please <33

Chemistry
1 answer:
Aliun [14]2 years ago
4 0

Answer:

Option 3 is correct.

The atomic nucleus of each element has a unique number of protons. Therefore, the energy of the electron layers of the atoms of each element is unique.

If we have the energy released from each electron transfer between the layers of the atom, we can identify the element.

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