Question

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.

Answer 1

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

Answer 2

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.