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Ivan
3 years ago
5

The SI unit for quantity of radioactive materials is:

Chemistry
1 answer:
DanielleElmas [232]3 years ago
3 0
The unit would be Becquerel, But I could be wrong.
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Explanation:

Bohr’s model explains the spectral lines .While the electron of the atom remains in the ground state, its energy is unchanged. When the atom absorbs one or more quanta of energy, the electron moves from the ground state orbit to an excited state and when the atom relaxes back to a lower energy state, it releases energy that is again equal to the difference in energy of the two orbits.

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3 years ago
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Answer:

The correct answer is D) Nerve tissue is found in the retina, the rods and cones at the back of the eye.

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