Question

How to use ionization energy and electron affinity to calculate change in energy?

A) Subtract ionization energy from electron affinity.

B) Add ionization energy and electron affinity.

C) Multiply ionization energy by electron affinity.

D) Divide ionization energy by electron affinity.

Answer 1

To calculate the change in energy using ionization energy and electron affinity, subtract the ionization energy from the electron affinity.

Step-by-step explanation:

To calculate the change in energy using ionization energy and electron affinity, you need to subtract the ionization energy from the electron affinity. The ionization energy represents the energy required to remove an electron from a neutral atom, while the electron affinity represents the energy change when an electron is added to a gaseous atom.

For example, if the ionization energy is 100 kJ/mol and the electron affinity is -50 kJ/mol, the change in energy would be 150 kJ/mol (-50 - (-100) = -50 + 100 = 150).

Therefore, option A) Subtract ionization energy from electron affinity is the correct