Consider the species 02-, O-, and O. Identify which of these three i. has the smallest value of Zeff ii. has the smallest radius iii. has the most...

Need help with these questions please, having a tough time understanding l

Consider the species 02-, O-, and O. Identify which of these threei. has the smallest value of Zeffii. has the smallest radiusiii. has the most negative (i.e., largest) electron affinityiv. has the largest ionization energyThe species Ar, Ca2+, and S2- have the same electron configuration.i. Give the electron configuration common to all three species.Identify which of these threeii. has the smallest value of Zeffiii. has the smallest radiusiv. has the most negative (i.e., largest) electron affinityv. has the largest ionization energy3. Consider the following data for Ge. Using only a periodic table, predict whether the properties forthe other elements will be greater than or smaller than that for Ge. In some cases, we will needto consider opposing trends, so it will be difficult for us to predict the property relative to Ge. Labelthose situations with a U for unable to decide.Atom|Atomic radius (pm) First Ionization Energy (kJ/mol)Ge122762InSeAlP4. Using nitrogen for your example, write out an equation for which the energy change is the "secondionization energy of nitrogen", and then write out an equation for which the energy change is thespecies."electron affinity of nitrogen". In both equations, clearly indicate the electron configuration of each