Answer the following question given this paragraph: 

Electron affinity is the energy required for an electron to be added to a neutral atom in its gaseous form. Because most atoms release energy when an electron is added, most electron affinity values are negative. These values generally become more negative (more energy is released) as you move left to right across the table or from bottom to top.


Q: What is the name for the energy required for an electron to be added to a neutral atom in its gaseous form?


A:
electron affinity