Select the correct species from each series and input into t…

Select the correct species from each series and input into the blank.  Which has the largest first ionization energy of S, P, and O? [BLANK-1] Which has the largest atomic radius of Al, Ac, and As? [BLANK-2] Which is not isoelectronic to the others of Se2-, Br1- Rb1+ and Sr1+? [BLANK-3] Which has the greatest electron affinity of Xe, Sn, Y and Te? [BLANK-4] Which has the smallest radius of Ca2+, S2-, Ar and Cl1-? [BLANK-5]