Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Isotopes21Choose 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
Stoichiometry Stoichiometry MCQS#Atomic Structure#Isotopes22Choose the best answerWhich statement correctly links atomic mass in amu with isotopes?Aamu ignores isotopes.Bamu depends on only one isotope of each element.CAtomic mass in amu reflects the weighted contribution of all naturally occurring isotopes.Damu is calculated using only neutrons. Like 0 Discuss 0Share
Stoichiometry#Isotopes#Stable Isotopes23Choose the best answerWhich of the listed elements are monoisotopic? 1. Arsenic 2. Fluorine 3. Gold 4. IodineA1 and 2 onlyB2 and 3 onlyC1, 2 and 3 onlyD1, 2, 3 and 4 Like 0 Discuss 0Share
Stoichiometry#Atomic Structure#Isotopes24Choose the best answerWho introduced the concept of isotopes?ABerzeliusBJ.J ThomsonCSoddyDAbraham Like 0 Discuss 0Share
Stoichiometry#Atomic Structure#Isotopes25Choose the best answerWhy is the relative atomic mass of chlorine about 35.45 instead of exactly 35 or 37?AChlorine atoms lose mass during bondingBChlorine contains equal numbers of neutrons and protonsCChlorine exists naturally as isotopes with different abundancesDAtomic masses are always decimal values Like 0 Discuss 0Share