Question

Why does manganese not have electron affinity?

a. It has a fully filled electron shell.
b. It is a noble gas.
c. It has a high ionization energy.
d. It is a nonmetal.

Answer 1

Manganese does not have electron affinity because it has a fully filled electron shell.

Step-by-step explanation:

Manganese does not have electron affinity because it has a fully filled electron shell in its ground state. Electron affinity refers to the ability of an atom to gain an electron and form an anion. Noble gases, not manganese, have fully filled outer shells which make them unreactive and have high ionization energies, meaning they require a lot of energy to remove an electron. Therefore, option a. It has a fully filled electron shell, is the correct answer.