1. Tardigrade
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  3. Chemistry
  4. Ionization energy of the element X( g ) is I and the electron affinity of X+( g ) is E then

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Q. Ionization energy of the element $X( g )$ is $I$ and the electron affinity of $X^{+}( g )$ is $E$ then

Classification of Elements and Periodicity in Properties

Solution:

$X( g ) \rightarrow X^{+}( g )+e^{-}, \Delta H=I $
$X^{+}( g )+e^{-} \rightarrow X( g ), \Delta H=-I$
Thus, $I=-E$