Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Hydrogen Spectrum66Choose 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 Structure67Choose 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 Mass68Choose the best answerApproximately how many times heavier is a proton than an electron?A1836 timesB1839 timesC100,000 timesD1909 times Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Bohr Model69Choose the best answerBesides hydrogen, Bohr’s model is applicable to which species?AHe⁺ and Li²⁺BHe²⁺ and Li⁺CNa⁺ and Mg²⁺DAll multi-electron species Like 1 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Quantum Numbers70Choose the best answerWhich set of quantum numbers is not allowed?An = 0, ℓ = 0, mℓ = 0, ms = +½Bn = 1, ℓ = 0, mℓ = 0, ms = −½Cn = 2, ℓ = 1, mℓ = 0, ms = +½Dn = 2, ℓ = 0, mℓ = 0, ms = −½ Like 0 Discuss 1Share1