If electron affinity of an element is \( 6 \mathrm{eV} / \) atom an...

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If electron affinity of an element is \( 6 \mathrm{eV} / \) atom and ionisation energy is \( 16.4 \mathrm{eV} / \) atom then electronegativity of element on Pauling scale is :
(a) \( 2.5 \)
(b) \( 3.5 \)
(c) \( 4.0 \)
(d) \( 3.0 \)
\( \mathrm{P} \)
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