Which of the following BEST explains why a 3p orbital is higher in energy than a 3s orbital for all atoms or ions that contain more than 1 electron? a. 3p electrons penetrate the core electrons less effectively than 3s electrons. b. None of the other answers shown are correct. The 3p and 3s sublevels have the exact same energy. c. The nucleus repels 3p electrons more than 3s electrons. d. The 3p sublevel holds more electrons than the 3s sublevel. e. 3p electrons are more shielded than 3s electrons.

6. Draw and fill in an orbital diagram for the following elements. (boxes and arrows) ONLY complete a diagram for the valence electrons-those written in the HIGHEST ENERGY LEVEL. a. Mg b. S С. Zn d. Ge e. At

Which of the following elements will present a paramagnetic electron configuration

Emission spectra (Bright line spectra) result from: A. Ground state electrons moving to lower aromic orbitals B. Excited electrons moving to higher atomic orbitals C. Electrons remaining in their ground state D. none of the above

V orbital

Which statement about the quantum numbers that identify an atomic orbital is not correct? Select one: a. For p orbitals of any given shell, there are five possible ml values. b. The magnetic quantum number can have values that range from  to  in integer steps. c. Statements A-D are all correct. d. The magnetic quantum number, ml, identifies the orientation of the orbital in space. e. An s orbital of any given shell has only one possible ml value.

For n=4, what are the possible sublevels? a. 1,2,3,4 b. 0,1 c. 0,1,2 d. 0,1,2,3 e. O

64.  Which of these elements has two s and six p electrons in its outer energy level?   A. He            B. Si   C. Ar   D. N   E. Na

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Which orbital does not fill before a 4s in a multielectron atom? Select one: a. 3s b. 2s O c. 2p d. 3d e. Зр