Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Isotopes296Choose the best answerWhich radioactive isotope is commonly used to date ancient organic materials?ACarbon-12BCarbon-14CUranium-238DCobalt-60 Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Isotopes297Choose the best answerWhich industrial quantity can be measured using radioactive isotopes?AThe age of fossils onlyBThe density of metal sheets and thickness of plastic filmsCThe atomic mass of metalsDThe melting points of solids Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Discovery of Neutron298Choose the best answerWhich element did Chadwick bombard with α particles to discover the neutron?ABoronBBerylliumCCarbonDHelium Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Bohr Model299Choose the best answerWhich expression represents the Bohr radius constant, a₀?Aa₀ = ε₀h²/πme²Ba₀ = n²h²/4π²m²r²Ca₀ = Ze²/4πε₀Da₀ = h/2πm Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#X-Rays300Choose the best answerK-series X-rays are mainly produced by elements with:ASmall atomic numbersBLarge atomic numbersCNo neutronsDIdentical atomic masses Like 1 Discuss 0Share