Atomic StructureAtomic Nucleus241Choose the best answerThe fundamental particles present in the nucleus of an atom are:Aα-particles and electronsBProtons and neutronsCNeutrons and electronsDProtons, neutrons and electrons Like 0 Discuss 0Share
Stoichiometry#Atomic Structure#Isotopes242Choose the best answerWhich statement about isotopes is correct?AThey have the same mass number but different atomic numbersBThey have the same atomic number but different mass numbersCThey have the same number of neutrons but different protonsDThey have different atomic numbers and different chemical identities Like 0 Discuss 0Share
Atomic StructureNodes in Atomic Orbitals243Choose the best answerA node is a region where the probability of finding an electron is:A50%BLess than 10%CMore than 95%DZero Like 0 Discuss 0Share
Atomic StructureAufbau Principle and Orbital Energy244Choose the best answerWhich set of quantum numbers represents the highest-energy orbital?An = 4, ℓ = 0, mℓ = 0, mₛ = +½Bn = 3, ℓ = 0, mℓ = 0, mₛ = +½Cn = 3, ℓ = 1, mℓ = +1, mₛ = +½Dn = 3, ℓ = 2, mℓ = +1, mₛ = +½ Like 0 Discuss 0Share
Atomic StructureQuantum Numbers245Choose the best answerIf an electron has mℓ = −3, the minimum possible principal quantum number is:A1B2C3D4 Like 0 Discuss 0Share