Stoichiometry#Atomic Structure#Isotopes336Choose 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
Stoichiometry Stoichiometry MCQS#Atomic Structure#Subatomic Particles337Choose the best answerAn atom has atomic number 35 and mass number 80. Which option gives its correct composition?A35 protons, 35 electrons, 45 neutronsB35 protons, 35 electrons, 80 neutronsC35 protons, 36 electrons, 45 neutronsD35 protons, 36 electrons, 80 neutrons Like 0 Discuss 0Share
UHS MDCAT 2023 ChemistryUHS MDCAT 2023 Past Paper#Atomic Structure#Electronic Configuration338Choose the best answerWhich of the following is correct electronic configuration of iron (II) ion (atomic no. of Fe is =26)? (UHS MDCAT 2023)A[Ar] 4s⁰, 3d⁶B[Ar] 4s², 3d⁶C[Ar] 4s², 3d⁴D[Ar] 4s², 3d⁵ Like 2 Discuss 0Share1
Stoichiometry#Atomic Structure#Isotopes339Choose the best answerAn element has isotopes of 30 u (80%) and 40 u (20%). What is its relative atomic mass?A32B34C36D38 Like 0 Discuss 0Share
Stoichiometry 11#Atomic Structure#Isotopes340Choose the best answerAn element contains 75% of an isotope of mass 24 u and 25% of an isotope of mass 26 u. What is its relative atomic mass?A24.0B24.5C25.0D25.5 Like 0 Discuss 0Share