Stoichiometry 11#Atomic Structure#Isobars16Choose the best answerWhich pair represents isobars?A³⁵Cl and ³⁷ClB¹²C and ¹³CC⁴⁰Ar and ⁴⁰CaD²³Na and ²⁴Na Like 0 Discuss 0Share
Stoichiometry 11#Atomic Mass Comparison17Choose the best answerElements A and B have atomic masses 10 u and 20 u. What is the atomic-mass ratio B:A?A1:2B2:1C1:1D4:1 Like 0 Discuss 0Share