Multiple Choice
In an atom of hydrogen, where is the highest-energy electron located?
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10. Periodic Properties of the Elements
The Electron Configuration
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Which of the following best describes the term 'electron orbital'?
A
A region in an atom where there is a high probability of finding an electron.
B
The energy level of an atom determined by the number of protons.
C
The total number of electrons present in an atom.
D
The path that an electron follows around the nucleus, similar to a planet orbiting the sun.
Verified step by step guidance1
Understand that an electron orbital is a concept from quantum chemistry describing where electrons are likely to be found around an atom's nucleus.
Recall that unlike classical orbits, electron orbitals do not represent fixed paths but rather regions of space with a high probability of locating an electron.
Recognize that the energy level of an atom is related to the number of protons but is not the definition of an electron orbital.
Note that the total number of electrons in an atom is a count, not a description of their spatial distribution or behavior.
Conclude that the best description of an electron orbital is 'a region in an atom where there is a high probability of finding an electron,' reflecting the probabilistic nature of electron positions.
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