Which one of the following arrangements represents the correct order of electron gain enthalpy of the given atomic species?

Options

A. ClltFltSltO
B. OltSltFltCl
C. SltOltClltF
D. FltClltOltS

Answer

A

Explanation

Electric gain enthalpies of given four atomic species are F(-328 k J `mol^(-1)`), Cl(-349 k J `mol^(-1)`) O (-141 k J `mol^(-1)` ) S(-200 kJ `mol^(-1)`) Correct increasing order (with negative sign) is Cl lt F ltSltO.