Which of the following is the reaction associated with the electron affinity of magnesium? -Mg(g) → Mg+(g) + e- -Mg(g) → Mg2+(g) + 2e- -Mg(g) + 2e- → Mg2-(g) -Mg(g) + e- → Mg-(g) -Mg(g) → Mg-(g) + e-

1 Answer
Oct 30, 2017

The electron affinity is the energy associated with one mole of gaseous anions, from one mole of gaseous atoms, and one mole of electrons....

Explanation:

i.e. it is the enthalpy associated with the reaction....

#M(g) + e^(-) rarrM^(-)(g)+Delta#

Electron affinity generally increases across a Period (from left to right as we face the Table), and decreases down a Group.....