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MCAT Chemistry Question — Electrons
- by
- Jan 23, 2014
- MCAT Blog, MCAT Question of the Day
- Reviewed By: Liz Flagge
In the Bohr model of the atom, electrons jump to a higher energy orbital when:
a) sufficient energy is absorbed
b) their spin coefficient increases sufficiently
c) they move to a smaller radius orbital
d) photons are given off
Explanations
The Bohr model of the atom suggested that electrons existed in orbitals of finite energy levels. Electrons may jump to a higher orbital if sufficient energy in the form of photons is absorbed, and finite energy is given off in the form of photons if an electron in a higher energy orbital returns to a lower level orbital.
a) sufficient energy is absorbed, correct
b) their spin coefficient increases sufficiently, incorrect, there is no spin coefficient
c) they move to a smaller radius orbital, incorrect, electrons gaining energy move to larger radius orbitals
d) photons are given off, incorrect, photons are given off when electrons move to lower energy orbitals
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