Atomic StructureBohr Radius46Choose the best answerThe ratio of radii of the second and first Bohr orbits of hydrogen is:A2 : 1B4 : 1C3 : 1D5 : 1 Like 0 Discuss 0Share
MDCAT Chemistry Past Paper 2023#Atomic Structure#Electronic Configuration47Choose the best answerThe valence shell electronic configuration of an element is 4s² 4p¹. To which group does the element belong? (MDCAT 2023)AIBBIIBCIADIIIA Like 0 Discuss 0Share
Atomic StructureEnergy Order of Subshells48Choose the best answerIn a multi-electron atom, the general energy order of subshells within the same principal shell is:As < p < d < fBs > p > d > fCp < d < f < sDf < d < p < s Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Planck Quantum Theory49Choose the best answerWho introduced quantum theory in 1900?AAlbert EinsteinBMax PlanckCNiels BohrDWilhelm Roentgen Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Bohr Model50Choose the best answerFor which species does Bohr’s atomic model fail to explain the spectrum?AH and He⁺BLi²⁺ and Be³⁺CMulti-electron atomsDAll one-electron species Like 0 Discuss 0Share1