UHS MDCAT 2023 ChemistryUHS MDCAT 2023 Past Paper#Atomic Structure#Electronic Configuration316Choose the best answerWhat is the proton (atomic number) of an element that has four unpaired electrons in its ground state? (UHS MDCAT 2023)A6B14C22D26 Like 0 Discuss 0Share
Atomic StructureExceptions to Aufbau Principle317Choose the best answerWhich pair consists of well-known exceptions to the simple Aufbau prediction?ACr and ClBCu and AgCCr and MgDCu and Na Like 0 Discuss 0Share
Atomic StructureNumber of Orbitals in a Shell318Choose the best answerThe total number of orbitals in a shell with principal quantum number n is:A2nB2n²Cn²Dn + 1 Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#X-Rays319Choose the best answerWhich statement about X-rays is incorrect?AThey travel with the speed of light in vacuumBThey are deflected by electric and magnetic fieldsCThey affect photographic platesDThey can ionize gases Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Bohr Energy320Choose the best answerFor hydrogen, Eₙ = −K/n². What is the value of K?A2.18 × 10⁻¹⁸ J atom⁻¹B8.84 × 10⁻¹² J atom⁻¹C6.626 × 10⁻³⁴ J atom⁻¹D1.602 × 10⁻¹⁹ J atom⁻¹ Like 0 Discuss 0Share