Multiple ChoiceA neutral atom has the following electron configuration: 1s^2 2s^2 2p^6 3s^2 3p^5. Which element is this atom?129views
Multiple ChoiceWhich of the following is the correct electron configuration for the Y^{3+} ion?127views
Multiple ChoiceWhich of the following is the correct electron configuration for boron (atomic number 5)?132views
Multiple ChoiceWhich of the following represents the correct electron configuration for a neutral oxygen atom?117views
Multiple ChoiceWhich of the following is the correct electron configuration for a neutral bromine (Br) atom?139views
Multiple ChoiceWhich of the following is the correct ground-state electron configuration for molybdenum (Mo)?196views
Multiple ChoiceHow many electrons are present in a neutral atom of vanadium (atomic number 23)?182views
Multiple ChoiceWhich of the following represents the electron configuration of an oxygen atom in the ground state?146views
Multiple ChoiceWhich of the following represents the ground state electron configuration for the element neodymium (Nd, atomic number 60)?144views
Multiple ChoiceWhich of the following is the correct electron configuration for antimony (Sb)?128views
Multiple ChoiceWhich of the following is the correct electron configuration for phosphorus (atomic number 15) using core notation?150views