electron gain enthalphy of sulphur and oxygen

The electron gain enthalpy of an atom is the amount of energy released when an electron is added to a neutral atom to form a negative ion.

For sulfur and oxygen, the electron gain enthalpies are as follows:

1. Sulfur (S): The electron gain enthalpy of sulfur is -200 kJ/mol. This means that 200 kJ of energy is released when an electron is added to a sulfur atom.

2. Oxygen (O): The electron gain enthalpy of oxygen is -141 kJ/mol. This means that 141 kJ of energy is released when an electron is added to an oxygen atom.

In general, elements in the same group of the periodic table have similar electron gain enthalpies because they have the same number of valence electrons. However, sulfur has a higher electron gain enthalpy than oxygen because it has more protons in its nucleus, which can attract the added electron more strongly.