Which of the following best helps to explain why the electron affinity for Be is less favorable than the electron affinity for Li?
Choose 1
O) The electron added to Be experiences a greater effective nuclear charge than the electron added to
Li experiences.
O) The electron added to Be is shielded by more core electrons than the electron added to Li is.
O) The electron added to Be goes into a higher energy orbital than the electron added to Li goes into.
O) The electron added to Be goes into a higher electron shell than the electron added to Li goes into.