Multiple ChoiceHow many valence electrons occupy sigma-bond orbitals in a single covalent bond between two atoms?58views
Multiple ChoiceWhat is the maximum number of unpaired d electrons that an atom or ion can possess?76views
Multiple ChoiceWhich element has 2 valence electrons and is located in period 4 of the periodic table?45views
Multiple ChoiceHow many unpaired electrons are present in a sulfur (S) atom in its ground state?59views
Multiple ChoiceHow many valence electrons are present in a molecule of HCN (hydrogen cyanide)?58views
Multiple ChoiceHow many electrons are present in the n = 3 shell of a neutral vanadium (V) atom?51views