Chemistry - Atomic Structure Question with Solution | TestHub
ChemistryAtomic StructureSchrödinger's EquationMedium2 minQB
ChemistryMediummultiple choice
All electrons in a hydrogen sample occupy the same excited level . On return to ground, six different photon wavelengths are emitted. Which statements are incorrect?
Options:(select one or more)
Answer:
A, C, D
Solution:
Six emission wavelengths imply n(n-1)/2=6, hence n=4. All photons have speed c in vacuum, so A is incorrect. Maximum photon energy is 13.6(1-1/16)=12.75 eV; subtracting 8 eV work function gives maximum electron kinetic energy 4.75 eV, making B true. Total radial nodes across n=4 orbitals are 3(1)+2(3)+1(5)+0(7)=14, not 6. Total angular nodes across n=3 orbitals are 0(1)+1(3)+2(5)=13, not 3. Asked for incorrect statements: A,C,D.
Stream:JEESubject:ChemistryTopic:Atomic StructureSubtopic:Schrödinger's Equation
⏱ 2mℹ️ Source: QB
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