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General Chemistry

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Moderate

Metallic Radii

CHEM-UO18FH

Which of the following electronic configurations represent an element that has the LARGEST metallic radius?

A

${ Is }^{ 2 }{ 2s }^{ 2 }{ 2p }^{ 6 } { 3s }^{ 1 }$

B

${ Is }^{ 2 } { 2s }^{ 2 } { 2p }^{ 6 } { 3s }^{ 2 } { 3p }^{ 6 }{ 4s }^{ 2 }$

C

${ Is }^{ 2 }{ 2s }^{ 2 }{ 2p }^{ 6 }{ 3s }^{ 2 }{ 3p }^{ 6 }3d^{ 10 }{ 4s }^{ 1 }$

D

${ Is }^{ 2 }{ 2s }^{ 2 }{ 2p }^{ 6 }{ 3s }^{ 2 }{ 3p }^{ 2 }$