Multiple Choice
In the modern quantum mechanical model of the atom, electrons are best described as which of the following?
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9. Electrons in Atoms and the Periodic Table
Electronic Structure: Orbitals
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In the context of atomic orbitals, what is meant by the term electron cloud?
A
A region around the nucleus representing the probability distribution of where an electron is likely to be found in an orbital
B
A continuous stream of electrons emitted from the nucleus during radioactive decay
C
A fixed circular path around the nucleus where an electron travels at a constant speed
D
A cluster of protons and neutrons that determines the atom’s mass number
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