Multiple ChoiceA neutral atom has the following electron configuration: 1s^2 2s^2 2p^6 3s^2 3p^5. Which element is this atom?122views
Multiple ChoiceWhich of the following is the correct electron configuration for the Y^{3+} ion?116views
Multiple ChoiceWhich of the following is the correct electron configuration for boron (atomic number 5)?123views
Multiple ChoiceWhich of the following represents the correct electron configuration for a neutral oxygen atom?110views
Multiple ChoiceWhich of the following is the correct electron configuration for a neutral bromine (Br) atom?126views
Multiple ChoiceWhich of the following is the correct ground-state electron configuration for molybdenum (Mo)?183views
Multiple ChoiceHow many electrons are present in a neutral atom of vanadium (atomic number 23)?171views
Multiple ChoiceWhich of the following represents the electron configuration of an oxygen atom in the ground state?135views
Multiple ChoiceWhich of the following represents the ground state electron configuration for the element neodymium (Nd, atomic number 60)?130views
Multiple ChoiceWhich of the following is the correct electron configuration for antimony (Sb)?121views
Multiple ChoiceWhich of the following is the correct electron configuration for phosphorus (atomic number 15) using core notation?140views