Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Electronic Configuration11Choose the best answerHow are electrons arranged in degenerate orbitals according to Hund’s rule?APairing in one orbital before occupying anotherBOccupying them singly with parallel spins before pairingCOccupying the highest-energy orbital firstDEntering only two of the available orbitals Like 3 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Monochromatic Radiation12Choose the best answerWhat is radiation consisting of a single wavelength called?APolychromatic radiationBMonochromatic radiationCContinuous radiationDDispersed radiation Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Bohr Model13Choose the best answerAn electron falls from E₂ to the lower level E₁. What is the energy of the emitted photon?AE₁ − E₂BE₂ − E₁CE₁ + E₂DE₂/E₁ Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Spectrum#Atomic Structure14Choose 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 Energy15Choose 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