Multiple ChoiceAccording to the Aufbau principle, what is the maximum number of electrons that can occupy the third energy level (n = 3) of an atom?40views
Multiple ChoiceWhich of the following diagrams correctly represents the distribution of electrons in the electron shells of a helium atom?59views
Multiple ChoiceWhich change to the electron configuration of nitrogen (atomic number 7) would result in a stable, noble gas configuration?45views
Multiple ChoiceWhen writing the electron configuration for plutonium (atomic number 94), which of the following is the correct ending for its configuration?42views
Multiple ChoiceAccording to the aufbau principle, which of the following sublevels is lowest in energy?40views
Multiple ChoiceWhich of the following is the correct ground-state electron configuration for gallium (Ga; Z = 31)?47views
Multiple ChoiceWhich of the following represents the correct electron configuration for a neutral atom of titanium (atomic number 22)?47views
Multiple ChoiceWhich of the following represents the correct electron configuration for a neutral atom of magnesium?50views
Multiple ChoiceWhich of the following is the correct electron configuration for a neutral selenium (Se) atom?37views
Multiple ChoiceWhich of the following electron configurations represents an atom of chlorine (atomic number 17) in an excited state?42views