Multiple Choice
How many valence electrons does a chlorine (Cl) atom have?
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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
Which electrons are primarily responsible for many of the chemical and physical properties of elements?
A
Valence electrons
B
Core electrons
C
Neutrons
D
Protons
Verified step by step guidance1
Understand that the chemical and physical properties of elements are largely determined by the electrons involved in bonding and interactions with other atoms.
Recall that electrons in an atom are divided into core electrons (those in inner shells) and valence electrons (those in the outermost shell).
Recognize that core electrons are tightly bound to the nucleus and generally do not participate in chemical reactions.
Identify valence electrons as the electrons in the outermost shell that can be gained, lost, or shared during chemical reactions.
Conclude that valence electrons are primarily responsible for many of the chemical and physical properties of elements.
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