Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Bohr Model311Choose the best answerWhat is the numerical value of the Bohr radius?A0.529 × 10⁻⁸ cmB1.602 × 10⁻¹⁹ cmC8.84 × 10⁻¹² cmD6.625 × 10⁻³⁴ cm Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Subatomic Particles312Choose the best answerMillikan’s oil-drop experiment showed that electric charge occurs in integral multiples of:A1.6 × 10⁻¹⁹ CB9.1 × 10⁻³¹ CC3.2 × 10⁻¹⁹ CD1.0 × 10⁻¹⁹ C Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Hydrogen Spectrum313Choose the best answerWhich hydrogen spectral series lies completely in the ultraviolet region?ABalmer seriesBLyman seriesCPaschen seriesDBrackett series Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Emission Spectrum#Atomic Structure314Choose the best answerThe characteristic yellow emission of sodium mainly consists of:AOne prominent lineBTwo closely spaced prominent linesCThree equally spaced linesDFour prominent lines Like 1 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Subatomic Particle Mass315Choose the best answerApproximately how many times heavier is a proton than an electron?A1836 timesB1839 timesC100,000 timesD1909 times Like 0 Discuss 0Share