Question

in what state are electron affinities typically measured? *
plasma state
liquid state
solid state
gaseous state

Explanation:

Electron affinity is defined as the energy change when an electron is added to a neutral atom in the gaseous state to form a negative ion. This is because in the gas - phase, the atoms are well - separated and interactions between them are minimal, allowing for a more straightforward measurement of the energy associated with electron addition.

Answer:

D. Gaseous state