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?39views
Multiple ChoiceWhich of the following diagrams correctly represents the distribution of electrons in the electron shells of a helium atom?58views
Multiple ChoiceWhich change to the electron configuration of nitrogen (atomic number 7) would result in a stable, noble gas configuration?44views
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?39views
Multiple ChoiceWhich of the following is the correct ground-state electron configuration for gallium (Ga; Z = 31)?45views
Multiple ChoiceWhich of the following represents the correct electron configuration for a neutral atom of titanium (atomic number 22)?46views
Multiple ChoiceWhich of the following represents the correct electron configuration for a neutral atom of magnesium?49views
Multiple ChoiceWhich of the following is the correct electron configuration for a neutral selenium (Se) atom?36views
Multiple ChoiceWhich of the following electron configurations represents an atom of chlorine (atomic number 17) in an excited state?41views