Multiple Choice
How many valence electrons does a boron (B) atom have?
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10. Periodic Properties of the Elements
Valence Electrons of Elements
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Which type of properties are primarily determined by the valence electrons of an element?
A
Nuclear properties, such as radioactivity
B
Chemical properties, such as reactivity and bonding behavior
C
Optical properties, such as color and luster
D
Physical properties, such as melting point and density
Verified step by step guidance1
Understand that the properties of an element can be broadly categorized into nuclear, chemical, optical, and physical properties.
Recall that valence electrons are the outermost electrons of an atom and are primarily involved in interactions with other atoms.
Recognize that chemical properties, such as reactivity and bonding behavior, depend on how atoms share, lose, or gain valence electrons during chemical reactions.
Note that nuclear properties, like radioactivity, depend on the nucleus and not on the electrons, so valence electrons do not determine these properties.
Conclude that valence electrons mainly determine the chemical properties of an element, influencing how it reacts and bonds with other elements.
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