Multiple Choice
Which of the following best defines valence in chemistry?
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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
Why are valence electrons important in chemistry?
A
They determine how an atom interacts and bonds with other atoms.
B
They are located in the nucleus and define the atomic number.
C
They are responsible for the mass of the atom.
D
They determine the color of the element.
Verified step by step guidance1
Understand that valence electrons are the electrons located in the outermost shell (energy level) of an atom.
Recognize that these valence electrons are the ones involved in chemical reactions because they can be gained, lost, or shared when atoms form bonds.
Recall that the way atoms interact and bond with each other depends on the number and arrangement of their valence electrons.
Note that valence electrons do not reside in the nucleus; instead, protons and neutrons are in the nucleus, and the atomic number is defined by the number of protons.
Conclude that valence electrons are crucial because they determine the chemical properties and bonding behavior of an element, not the mass or color.
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