Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Orbitals#Atomic Structure116Choose the best answerWhat is the three-dimensional region around the nucleus where an electron is most likely to be found?AOrbitBShellCOrbitalDEnergy packet Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Quantum Theory117Choose the best answerIn Planck’s theory, the discrete packets of absorbed or emitted energy are called:AElectronsBQuantaCProtonsDNeutrons Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Hydrogen Spectrum118Choose the best answerIn which regions of the electromagnetic spectrum do hydrogen spectral lines occur?AUltraviolet, visible and infrared regionsBX-ray and γ-ray regions onlyCMicrowave region onlyDRadio-wave region only Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Hydrogen Spectrum119Choose the best answerWhat is produced when an electric discharge passes through molecular hydrogen?AOnly negative ionsBFree atomic hydrogen in excited statesCSolid hydrogen particlesDMulti-electron hydrogen atoms Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Spectra#Atomic Structure120Choose the best answerWhy can line spectra be used to identify elements?AEach element produces a characteristic set of spectral linesBEvery element produces a continuous spectrumCAll elements produce identical spectraDSpectral lines are independent of atomic structure Like 0 Discuss 0Share