Atomic StructureAllowed Values of Azimuthal Quantum Number2571Choose the best answerIf n = 3, which value of ℓ is NOT allowed?A0B1C2D3 Like 0 Discuss 0Share
Atomic StructureElectronic Transitions and Emission of Energy2572Choose the best answerWhen an electron falls from a higher energy level to a lower energy level:AEnergy is emittedBEnergy is absorbedCAtomic number increasesDAtomic number decreases Like 0 Discuss 0Share
Atomic StructureIsotopes2573Choose the best answerThe isotope ¹⁸₈O contains:A18 protonsB9 protons and 9 neutronsC8 neutrons and no protonsD8 protons and 10 neutrons Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Neutron Discovery2574Choose the best answerWhich scientist discovered the neutron in 1932?AJames ChadwickBErnest RutherfordCJ.J. ThomsonDJohn Dalton Like 0 Discuss 0Share
Aldehydes and KetonesAlpha, Beta and Gamma Carbons2575Choose the best answerIn CH₃CH₂CH₂CHO, the γ-carbon is:AThe carbonyl carbonBThe CH₂ carbon adjacent to –CHOCThe terminal CH₃ carbonDNo γ-carbon is present Like 0 Discuss 0Share