Atomic StructureMass Spectrometry106Choose the best answerIsotopes of an element are recorded separately by a:AMass spectrometerBSpectrophotometerCCalorimeterDIR spectrophotometer Like 0 Discuss 0Share
Sindh MDCAT 2020 Chemistry#Atomic Structure#Electronic Configuration107Choose the best answerElectronic configuration of chromium is: (Sindh MDCAT 2020)A[Ar] 3d⁴ 4s²B[Ar] 3d⁵ 4s²C[Ar] 3d⁵ 4s¹D[Ar] 3d⁶ 4s² Like 0 Discuss 0Share
Atomic StructureIsoelectronic Species108Choose the best answerWhich of the following are isoelectronic species? I. CH₃⁺ II. NH₂⁻ III. NH₄⁺ IV. NH₃AI, II, IIIBII, III, IVCI, II, IVDI and II Like 0 Discuss 0Share
Stoichiometry#Atomic Structure#Subatomic Particles109Choose the best answerWhich particle has a mass closest to 1 amu?AOne electronBOne protonCOne carbon-12 atomDOne oxygen atom Like 0 Discuss 0Share
Stoichiometry Stoichiometry MCQS#Atomic Structure#Isotopes110Choose the best answerWhy is the atomic mass of chlorine about 35.5 u?AIt has only one isotopeBIt exists as isotopes of Cl-35 and Cl-37CIt is found in equal proportionsDIt has an atomic number of 17 Like 0 Discuss 0Share