Multiple ChoiceHow many p electrons does selenium (Se), atomic number 34, possess in its ground state?79views
Multiple ChoiceWhich of the following pairs of elements have their valence electrons in the same shell?52views
Multiple ChoiceWhich of the following best describes the significance of valence electrons in an atom?47views
Multiple ChoiceWhich electrons in an atom are primarily responsible for participating in chemical bonding?51views
Multiple ChoiceWhich of the following elements has the same number of valence electrons as aluminum?65views
Multiple ChoiceWhat is the total number of outer (valence) electrons present in a molecule of sulfur dioxide (SO_2)?54views
Multiple ChoiceWhich of the following elements has two unpaired electrons in its ground-state electron configuration?63views
Multiple ChoiceWhich of the following represents the number of valence electrons in an atom of aluminum (Al)?43views
Multiple ChoiceHow many valence electrons are present in the outermost shell of a neutral atom with 15 electrons?46views