Electron affinity

Electron affinity

1:the electron affinity of an atom or molecule is defined as the amount of energy released when an electron is added to a neutral atom or molecule to form a negative ion.

2:electron affinity increase across a periodic table.

3:why, because the more nuclear charge an atom has the more likely it is to attract an electron.therefore, as nuclear charge increase from left to right within a period so too does electron affinity.