Define first ionization energy and electron affinity. Without looking directly at tables for ionization energy and electron affinity, use your understanding of atomic orbitals and electronic configurations to rank the first ionization energy and the electron affinity for the following atoms. Explain your reasoning: Na, Mg, Al

Here is a sketch of the radial probability distribution of three orbitals: probability 0.012- 0.010- 0.008- 0.006- 0.004 0.002- 200 400 600 distance from nucleus (pm) Use this sketch to answer the following questions. What is the most likely distance from the nucleus for an electron in orbital C? Note: your answer must be within 50 pm of the exact answer to be graded correct. List the orbitals in order of increasing energy: 800 Suppose all three orbitals were inner orbitals of an atom. In which orbital would an electron be most effective at screening the charge of the nucleus from the outer electrons? 199 1000 OP 0 pm (choose one) ✓ 0,0,... X

Give the shorthand/condensed electron configuration of:     I

A) Based on the photoelectron spectrum, identify the unknown element and write its electron configuration. B) Consider the element in the periodic table that is directly to the right of the element identified in part (a). Would the 1s peak of this element appear to the left of, right of, or in the same position as the 1s peak of the element in part (a)? Explain your reasoning.