1. Determine the term symbols associated with an electron configuration 1s²2s22p³. Which symbol corresponds to the ground state?

19. Which of the following electron configurations represent an excited state? Explain your answer. (a) [He]2s¹2p5 (b) [Kr]4d¹05s²5p¹ (c) [Ar]3d¹04s²4p5 (d) [Ne]3s²3p²4s¹

The complete ground state electron configuration of C (carbon; Z = 6) is:  1s22s22p2 Using the format illustrated above, type the complete ground state electron configuration for Ga (gallium; Z = 31) in the space provided below.

Enter full electron configurations for each of the following ions. P3− Express your answer in complete form, in order of increasing orbital. For example, 1s22s2 would be entered as 1s^22s^2.

Question 55 of 65 Submit Write the complete ground-state electron configuration of Cst. For multi-digit superscripts or coefficients, use each number in succession.

(b) Photoelectron spectroscopy data for the 1s sublevel of Ne and the 1s sublevel of Xe are represented below. In terms of Coulomb's law and atomic structure, explain why the peak for Ne is positioned so far to the right of the peak for Xe. Ne 3500 3000 2500 2000 1500 1000 500 Binding Energy (MJ/mol) Хе 3500 3000 2500 2000 1500 1000 500 Binding Energy (MJ/mol) Relative Number Relative Number of Electrons of Electrons

The ground state electron configuration of an Al atom is

Describe how Z effective charge is calculated for valent electrons and for internal electrons.