MolSynapsequestion bank
MolSynapse / Question bank / Periodic Table and Periodicity / Electron gain enthalpy
JEE Main levelOne or more correct optionsDifficulty 2 of 3pt142

Which of the following elements have a positive first electron gain enthalpy?

  1. A
  2. B
  3. C
  4. D

Answer: B, C

Ne has a complete octet (value about +116) and Mg has a filled subshell (about +). Chlorine (-349) and sulfur (-200) release energy.
Practice Periodic Table and Periodicity More on Electron gain enthalpy

More questions on Electron gain enthalpy