What are the relationships between the group configuration and number for the elements in the S, P, and D blocks?

I have a few chemistry questions. please please please help!?

• a. write the usual group configuration notation for each d-block group. b. how do the group numbers of those groups relate to the number of outer s and d electrons? 1. write the noble gas notation for the electron configuration of each of the following elements, and indicate the period in which each belongs. a. Li b. O c. Cu d. Br e. sn 2. a. Distinguish between the first, second and third ionization energies of an atom. b. How do the values of successive ionization energies compare. c. Why does this occur? 3. Without looking at the ionization energy table, arrange the following elements in order of decreasing first ionization energies: Li, O, C, K, Ne, and F. 4. Which element is the most electronegative among C, N, O, Br, and S? Which group does it belong to? 5. For each of the following groups, indicate whether electrons are more likely to be lost or gained in compound formation and give the number of such electrons typically involved a. group 1 b.group 2 c. group 13 please!

• Answer:

  Li- [He] 2s^1 O- [He] 2s^2 2p^4 Cu- [Ar] 4s^2 3d^7 Br- [Ar] 4s^2 3d^10 4p^5 Sn- [Kr] 5s^2 4d^10 5p^2 1st ionization energy is the energy required to remove one elctron from the atom. 2nd ionization is the energy required to remove a 2nd electron, and so on. Ionization energies increase, because each additional electron removed takes the atom further from being stable. Decreasing 1st ionizations: Ne, F, O, C, K, Li Bromine is the most electronegative of those 4. It belongs to group 17. (Halogens) Group 1- lose 1 electron Group 2- lose 2 electrons Group 13- lose 3 electrons