AP Chemistryeasymcq1 pt
Which substance is held together by metallic bonding?
A.Cu(s)
B.NaCl(s)
C.SiO₂(s)
D.H₂O(s)
Explanation
Core Concept
Copper consists of identical metal atoms whose valence electrons delocalize into a shared sea around the whole lattice. This delocalization is the defining feature of metallic bonding, and it explains why copper conducts electricity in every direction and deforms without shattering. Pure metals and alloys are both held together this way.
Correct Answer
ACu(s)
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