Multiple Choice
Which of the following best describes the significance of valence electrons in an atom?
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10. Periodic Properties of the Elements
Valence Electrons of Elements
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
What are the electrons in an atom's outermost energy level called?
A
Neutrons
B
Protons
C
Valence electrons
D
Core electrons
Verified step by step guidance1
Understand that an atom consists of a nucleus containing protons and neutrons, surrounded by electrons arranged in energy levels or shells.
Recognize that electrons in the outermost energy level of an atom are important because they participate in chemical bonding and reactions.
Recall the terminology: electrons in the outermost shell are called \textbf{valence electrons}, while electrons in inner shells are called core electrons.
Note that protons and neutrons are particles found in the nucleus, not electrons, so they are not related to the outermost energy level electrons.
Therefore, the electrons in an atom's outermost energy level are called \textbf{valence electrons}.
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