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Which of the following best describes an atom with five or more valence electrons?
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10. Periodic Properties of the Elements
Valence Electrons of Elements
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Where are valence electrons located in an atom?
A
Between the nucleus and the first electron shell
B
In the outermost electron shell
C
In the innermost electron shell
D
In the nucleus
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Understand that electrons in an atom are arranged in energy levels or shells around the nucleus.
Recall that valence electrons are the electrons involved in chemical bonding and reactions.
Recognize that valence electrons are located in the outermost electron shell of an atom, not in the inner shells or the nucleus.
Note that the innermost electron shells are filled first and are generally not involved in bonding.
Therefore, valence electrons are specifically found in the outermost shell, which determines the chemical properties of the element.
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