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Which of the following occurs when an electron moves from a higher energy shell to a lower energy shell? A. A neutron is always lost. B. A proton is always gained. C. Energy is released in the form of radiation. D. The electron must be transferred to another atom.

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TrissyB
Energy is released in the form of radiation. For an electron to move from a lower shell to a higher one, energy must be put in. This means that going from a higher shell to a lower one, it must lose energy to be in a less excited state. The electron must emit this radiation in the form of light with a wavelength equivalent to the amount of energy put in.
maddylee78

Revising the Atomic Model: 1.A  2.A  3.B  4.A

Electron Arrangement in Atoms: 1.B  2.C  3.D  4.C  5.C  6.A

Atomic Emission Spectra & Quantum Mechanical Model: 1.C  2.A  3.C  4.A  5.A

Organizing the Elements: 1. a principal energy level  2. Dmitri Mendeleev  3. metals


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