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S - Block Elements

Quick practice

Question 1 of 5

The first ionisation energy of

\left. \begin{array} { l l } { K \rightarrow K ^ { + } } & { ( I . E . = 383 kJ / mol ) } \\ { Br \rightarrow Br ^ { + } } & { ( I . E . = 1152 kJ / mol ) } \end{array} \right.

Which set represents correct value of electron affinity of K and Br

(all value in kJ/mol)

A

123, 384

B

559,384

C

123, 1168

D

559, 1168

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