Multiple Choice
Which electrons are primarily involved in chemical reactions?
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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
The chemical reactivity of an element is primarily determined by which of the following?
A
The number of valence electrons
B
The total number of protons and electrons
C
The number of neutrons
D
The atomic mass
Verified step by step guidance1
Understand that chemical reactivity is related to how an element interacts with other substances, which depends on the electrons involved in bonding.
Recall that electrons are arranged in shells around the nucleus, and the outermost shell electrons are called valence electrons.
Recognize that valence electrons determine an element's ability to gain, lose, or share electrons during chemical reactions.
Note that the total number of protons and electrons, number of neutrons, and atomic mass do not directly influence chemical reactivity in the same way valence electrons do.
Conclude that the chemical reactivity of an element is primarily determined by the number of valence electrons it has.
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