Multiple Choice
Based on periodic trends, when does an atom typically exhibit the greatest metallic character and reactivity?
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10. Periodic Properties of the Elements
Periodic Trend: Metallic Character
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Which property of metals is primarily due to the reflection of light off the delocalized electrons on their surface?
A
Luster
B
Malleability
C
High melting point
D
Electrical conductivity
Verified step by step guidance1
Understand that the question asks about a property of metals that results from the interaction of light with electrons on the metal's surface.
Recall that metals have delocalized electrons, which means electrons are free to move throughout the metal lattice rather than being bound to individual atoms.
Recognize that when light hits the surface of a metal, these free electrons can oscillate and reflect the light, producing a shiny appearance.
Identify that this shiny appearance caused by the reflection of light from delocalized electrons is called 'luster'.
Note that other properties like malleability, high melting point, and electrical conductivity are related to different characteristics of metals, not directly to light reflection.
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