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Chemistry
Chemistry
Problem
Element X forms a 1⁻ anion with an ionic radius of 181 pm. The electron affinity of the neutral atom is −349 kJ·mol⁻¹. Which element is most consistent with these observations? a)
B
r
\mathrm{Br}
Br
b)
C
l
\mathrm{Cl}
Cl
c)
F
\mathrm{F}
F
d)
S
\mathrm{S}
S
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