Atomic StructureHeisenberg Uncertainty Principle16Choose the best answerWhich principle most directly contradicts the idea of an electron moving in a precisely defined Bohr orbit?APauli exclusion principleBPlanck quantum theoryCHeisenberg uncertainty principleDHund's rule Like 0 Discuss 0Share
Atomic StructureElectron Capacity of Subshells17Choose the best answerHow many electrons can be accommodated in a subshell for which n = 3 and ℓ = 1?A8B6C18D32 Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Spectrum#Atomic Structure18Choose the best answerWhat type of spectrum contains dark lines on a continuous bright background?AEmission-line spectrumBContinuous spectrumCAbsorption-line spectrumDBand spectrum Like 1 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Bohr Energy19Choose the best answerCalculate the energy of an electron in the L-shell of hydrogen.A−2.18 × 10⁻¹⁸ JB−5.45 × 10⁻¹⁹ JC−1.09 × 10⁻¹⁸ JD−3.28 × 10⁻¹⁹ J Like 0 Discuss 0Share1
Atomic StructureElectronic Transitions and Emission of Energy20Choose the best answerWhen an electron falls from a higher energy level to a lower energy level:AEnergy is emittedBEnergy is absorbedCAtomic number increasesDAtomic number decreases Like 0 Discuss 0Share