Multiple Choice
According to the Aufbau principle, what is the maximum number of electrons that can occupy the third energy level (n = 3) of an atom?
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10. Periodic Properties of the Elements
The Electron Configuration
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
In an atom, where are electrons most likely to be found?
A
Randomly distributed throughout the atom
B
In fixed circular paths called shells
C
Inside the nucleus with protons and neutrons
D
In orbitals surrounding the nucleus
Verified step by step guidance1
Understand that electrons are subatomic particles with negative charge that exist in atoms.
Recall that early atomic models, like the Bohr model, described electrons as moving in fixed circular paths called shells, but this is a simplified and outdated view.
Learn that modern quantum mechanics describes electrons as existing in regions of space called orbitals, where there is a high probability of finding an electron.
Recognize that orbitals are not fixed paths but rather probability distributions around the nucleus, meaning electrons are most likely to be found in these orbitals.
Conclude that electrons are not randomly distributed throughout the atom nor located inside the nucleus, but are found in orbitals surrounding the nucleus.
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