17) Sometimes, 4s orbital has slightly lower energy level than the 3d orbital. The reason is: a) The number of n+l for 4s is lower b) The I for 4s is lower c) 4s has more angular nodes than 3d d) 4s has more angular nodes than 3d 18) In the two elements P and S, the ionization energy varies as follows: a) Pis higher b) S is higher c) The two have exactly same values d) We cannot tell Part II: 19) Based on Pauling studies on the molecule H-F: a) Which Bond Energy is higher the theoretical or the experimental value? b) Why? (shirt answer only) (a) (b) 20) Consider the two systems i) I ion and ii) H2O2 molecule 1 mologular geometries for each system

17) Sometimes, 4s orbital has slightly lower energy level than the 3d orbital. The reason is: a) The number of n+l for 4s is lower b) The I for 4s is lower c) 4s has more angular nodes than 3d d) 4s has more angular nodes than 3d 18) In the two elements P and S, the ionization energy varies as follows: a) Pis higher b) S is higher c) The two have exactly same values d) We cannot tell Part II: 19) Based on Pauling studies on the molecule H-F: a) Which Bond Energy is higher the theoretical or the experimental value? b) Why? (shirt answer only) (a) (b) 20) Consider the two systems i) I ion and ii) H2O2 molecule 1 mologular geometries for each system

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter11: Modern Atomic Theory

Section: Chapter Questions

Problem 12ALQ

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Similar questions

Sketch an orbital contour that is expected for an electron that has n = 3 and = 2.
• identify an orbital (as 1s, 3p, etc.) from its quantum numbers, or vice versa.
How do 2p orbitals differ from each other? How do 2p and 3p orbitals differ from each other? What is a nodal surface in an atomic orbital? What is wrong with lp, ld, 2d, lf, 2f, and 3f orbitals? Explain what we mean when we say that a 4s electron is more penetrating than a 3d electron.
Use the aufbau procedure to obtain the electron configuration and orbital diagram for atoms of the following elements. (a) Be (b) B (c) Ne (d) Rb
What type of electron orbital (i.e., s, p, d, or f) is designated by an electron with quantum numbers (a) n=1,l=0,m l =0(b) n=3,l=2,m l =1? (c) n=4,l=3,m l =3
• list the number of orbitals of each type (1s, 3p, etc) in an atom.
The first ionization energies of As and Se are 0.947 and 0.941 MJ/mol, respectively. Rationalize these values in terms of electron configurations.
In defining the sizes of orbitals, why must we use an arbitrary value, such as 90% of the probability of finding an electron in that region?
For the following pairs of orbitals, indicate which is higher in energy in a many-electron atom. (a) 3s or 2P (b) 4s or 4d (c) 4f or 6s (d) 1s or 2s
State which of the following orbitals cannot exist according to the quantum theory: 2s, 2d, 3p, 3f, 4f, and 5s. Briefly explain your answers.