Multiple Choice
Where are the elements with the most valence electrons located on the periodic table?
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10. Periodic Properties of the Elements
Valence Electrons of Elements
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Which statement best describes the outer energy level (valence) electrons of metal atoms?
A
They are tightly bound and rarely participate in chemical reactions.
B
They are shared equally between atoms to form covalent bonds.
C
They are loosely held and can be easily lost to form positive ions.
D
They are always paired and do not contribute to electrical conductivity.
Verified step by step guidance1
Understand that valence electrons are the electrons in the outermost energy level of an atom and are primarily responsible for chemical bonding and properties.
Recall that metals tend to lose electrons easily because their valence electrons are held less tightly compared to nonmetals.
Recognize that when metals lose valence electrons, they form positive ions (cations), which is a key characteristic of metallic behavior.
Note that valence electrons in metals are not typically shared equally (as in covalent bonds) but are more free to move, contributing to properties like electrical conductivity.
Conclude that the best description of metal valence electrons is that they are loosely held and can be easily lost to form positive ions.
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