Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Electronic Configuration116Choose the best answerAccording to the Aufbau principle, which orbital fills first?A2sB1sC2pD3s Like 2 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Quantum Numbers117Choose the best answerHow many orbitals are present in an f-subshell?AThreeBFiveCSevenDTen Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Canal Rays118Choose the best answerWho discovered positive rays using a discharge tube with a perforated cathode?AJ.J. ThomsonBEugen GoldsteinCErnest RutherfordDJames Chadwick Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Quantum Numbers119Choose the best answerIn the notation 2p⁴, what do the numbers 2 and 4 represent?APrincipal shell and number of electronsBNumber of electrons and principal shellCAzimuthal quantum number and spinDAtomic number and mass number Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Discovery of Proton120Choose the best answerWho introduced the term “proton” for the positively charged nuclear particle?AEugen GoldsteinBJ.J. ThomsonCErnest RutherfordDRobert Millikan Like 0 Discuss 0Share