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AP® Chemistry

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Moderate

Most Reactive Element

APCHEM-LKII7V
Element Reaction with Water $\Delta T (^oC)$
A Small bubbles formed -2
B Vigorous bubbling +10
C Dissolved, no bubbles 0
D Small bubbles formed 0

$\ $
Which electron configuration would match the laboratory data for Element B?

A

$[Ne] 3s^2$

B

$[Xe] 6s^2$

C

$[Ar]4s^{ 2 }3d^{ 10 }$

D

$[Ne] 3s^23p^3$