객관식
Which statement describes a characteristic of most metals?
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10. Periodic Properties of the Elements
Periodic Trend: Metallic Character
객관식
Which of the following is a property of metals?
A
Good electrical conductivity
B
Tend to gain electrons in chemical reactions
C
Poor heat conduction
D
Brittle when solid
검증된 단계별 안내1
Recall the general properties of metals, which include characteristics related to electrical conductivity, heat conduction, chemical behavior, and physical properties.
Understand that metals typically have free-moving electrons, which allow them to conduct electricity efficiently. This is a key property of metals.
Recognize that metals tend to lose electrons in chemical reactions (they are usually oxidized), rather than gain electrons, which is typical of nonmetals.
Note that metals are generally good conductors of heat, not poor conductors, due to the mobility of their electrons and lattice vibrations.
Remember that metals are usually malleable and ductile, meaning they can be shaped without breaking, so they are not brittle when solid.
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