Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Bohr Model61Choose the best answerCalculate the radius of the fourth Bohr orbit in a hydrogen atom.A2.11 ÅB4.23 ÅC8.46 ÅD16.92 Å Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Neutron Number62Choose the best answerHow is the number of neutrons in an atom calculated?AMass number + atomic numberBMass number − atomic numberCAtomic number − mass numberDNumber of protons + number of electrons Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Ground State of Hydrogen63Choose the best answerAt room temperature, an electron in a hydrogen atom normally occupies:AAn excited stateBThe ground stateCThe second excited stateDAn unbound state Like 2 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Electronic Transitions64Choose the best answerFor a transition in a single atom, energy can be expressed as:AkJ mol⁻¹ onlyBJ per atomCJ mol⁻¹ onlyDm s⁻¹ Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Electron Energy65Choose the best answerThe total energy of an electron in an atom is the sum of which two energies?AKinetic and potential energiesBCentrifugal and electrostatic forcesCAngular momentum and frequencyDMass number and atomic number Like 0 Discuss 0Share