What is the diagonal effect? What is the basic reason for the diagonal relation of elements? Which quality of elements enhances after a diagonal relationship?

What are the factors that affect the orbital interaction in ar orbitals?

25. Arrange each set in order of increasing radius, and explain the basis for this order. (a) Al, B, K, Mg, Ar (b) P, Br, Br, Cl, Kr

Which of the following represent the proper long hand form electron configuration of molybdenum, Mo, using the building-up principle?   answer choices A. [Kr] 4d4 5s2 B. [Kr] 5s2 4d4 C. 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s2 4d4 D. 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d4 E. 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d4 5s2

The following reaction might occur in the interior of a star: He2+ + H → He* + H* Calculate the electronic energy change for this reaction. Assume all species in their ground states. 2.

P^3- orbital filling diagram

What is the electron configuration for Br? O [Ar]4s?3d104p6 [Ar]4s²3d104p5 [Ar]4s²4p6 [Ar]4s²4d104p6 [Ar]4s²3d104p4

29) Give the correct electron configurations of Cr and Cu. Explain why they do not have the expected electron configurations. a) Which of the following are correct electron configuration(s) for Cr? a) [Ar]3d44s2 b) [Ar]3d54s1 c) [Ar]4s23d5 d) [Ar]4s13d4   b) Which of the following are correct electron configuration(s) for Cu? a) [Ar]3d94s2 b) [Ar]3d104s1 c) [Ar]4s13d9 d) [Ar]4s23d10   c) Why do Cr and Cu not have the expected electron configurations? a) Half filled orbitals are more stable than partially filled orbitals. b) Completely filled orbitals are more stable than partially filled orbitals. c) Partially filled orbitals are more stable than completely filled orbitals. d) Moving an electron from the s to d orbital lowers the energy of the atom. e) Moving an electron from the s to d orbital increases the energy of the atom.

7) Estimate the atomic radii (in nm) of silver and vanadium (compare the estimates with the reported densities).

which of the following does have the lowest polarizability? Z of I=53, F=9. Br=35, Cl=53