Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Atomic Theory301Choose the best answerAccording to the classical Greek view, matter was mainly composed of:AAtoms and moleculesBEarth, water, air and fireCProtons, neutrons and electronsDSolid particles only Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Spectroscopy302Choose the best answerIn the word spectroscopy, the Greek root “skopia” means:AMeasurementBObservation or viewingCRadiationDReflection Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Bohr Model303Choose the best answerWhat is the total energy of an electron in a permitted Bohr orbit?A−Ze²/4πε₀rB−Ze²/8πε₀rCZe²/8πε₀rD½mv² Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Wave Relations304Choose the best answerWhich relation correctly connects frequency (ν), wavenumber (ν̄) and the speed of light (c)?Aν = ν̄/cBν = cν̄Cν = ν̄ + cDν = c/ν̄ Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#X-Rays305Choose the best answerWho studied the X-ray spectra of elements from aluminium to gold in 1913?AWilhelm RoentgenBHenry MoseleyCHenri BecquerelDMarie Curie Like 1 Discuss 0Share