Multiple ChoiceWhich element has the electron configuration 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^4?127views
Multiple ChoiceWhich of the following is the correct electron configuration for nobelium (No, atomic number 102)?139views
Multiple ChoiceWhich element has the following ground state electron configuration: 1s^2 2s^2 2p^6 3s^2 3p^5?111views
Multiple ChoiceWhich of the following represents the valence electron configuration for a boron atom?117views
Multiple ChoiceWhich element has the ground state electron configuration 1s^2 2s^2 2p^6 3s^2 3p^1?119views
Multiple ChoiceWhich of the following represents the correct electron configuration for a neutral atom of cobalt (atomic number 27)?141views
Multiple ChoiceWhich of the following represents the ground-state electron configuration of sulfur (S)?114views
Multiple ChoiceWhich of the following electron configurations represents a potassium atom (K) in an excited state?158views
Multiple ChoiceWhich of the following represents the correct electron configuration for a neutral atom of helium?127views
Multiple ChoiceWhich of the following is the correct electron configuration for indium (atomic number 49)?143views
Multiple ChoiceWhich of the following represents the correct electron configuration for a neutral atom of argon?150views
Multiple ChoiceHow many electrons are present in the electron cloud of a neutral carbon atom?153views
Multiple ChoiceWhich of the following is the correct electron configuration for aluminum (Al)?127views
Multiple ChoiceWhich of the following is the correct electron configuration for a nitrogen atom?134views