1. write the full electron configuration for te following ca^2+, Ga^2+, S^2- a. draw pictures of the s orbital and p orbitals below b. which subshells are being filled in each of the following regions of the periodic table groups 1 and 2 the lanthanides and actinides c. how many valence electrons do the following atoms contain S, Ba, Ar d. arrange the following species in order of increasing radius Ca, Mg, Sr K, Ga, Ca e. Place the following elements in order of increasing ionization energy Ba, Sr, Ca Si, Na, Mg K, Ca, Rb f. Rank the following elements in order of increasing metallic character K, Ca, Rb