Multiple Choice
Which of the following elements has a complete valence electron shell?
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10. Periodic Properties of the Elements
Valence Electrons of Elements
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Which of the following statements accurately describes properties of valence electrons?
A
Valence electrons are only present in noble gases.
B
Valence electrons are the electrons in the outermost shell of an atom and are involved in chemical bonding.
C
Valence electrons are always found in the innermost shell of an atom.
D
Valence electrons do not affect the chemical reactivity of an element.
Verified step by step guidance1
Understand that valence electrons are defined as the electrons located in the outermost electron shell (energy level) of an atom.
Recognize that valence electrons are important because they participate in chemical bonding and determine the chemical properties and reactivity of an element.
Note that valence electrons are not limited to noble gases; all elements have valence electrons in their outermost shell.
Remember that valence electrons are not found in the innermost shell, as those are core electrons that do not typically participate in bonding.
Conclude that the correct description is: valence electrons are the electrons in the outermost shell of an atom and are involved in chemical bonding.
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