Stoichiometry#Atomic Structure#Isotopes386Choose the best answerWhat is meant by isotopic abundance?AThe number of isotopes present in an elementBThe percentage of atoms of a particular isotope occurring naturally in a sample of an elementCThe ratio of protons to neutrons in an isotopeDThe total mass of all isotopes present in one mole of an element Like 1 Discuss 2Share
Stoichiometry#Atomic Structure#Subatomic Particles387Choose the best answerWhich particle has a mass closest to 1 amu?AOne electronBOne protonCOne carbon-12 atomDOne oxygen atom Like 0 Discuss 0Share
Sindh MDCAT 2020 Chemistry#Atomic Structure#Electronic Configuration388Choose the best answerElectronic configuration of chromium is: (Sindh MDCAT 2020)A[Ar] 3d⁴ 4s²B[Ar] 3d⁵ 4s²C[Ar] 3d⁵ 4s¹D[Ar] 3d⁶ 4s² Like 0 Discuss 0Share
SINDH MDCAT 2019 CHEMISTRY#Atomic Structure#Canal Rays389Choose the best answerThe nature of positive rays depends on: (Sindh MDCAT 2019)AThe nature of the electrodeBThe nature of the discharge tubeCThe nature of the residual gasDThe shape of the electrode Like 0 Discuss 0Share
UHS MDCAT 2023 ChemistryUHS MDCAT 2023 Past Paper#Atomic Structure#Electronic Configuration390Choose the best answerAfter the 6d subshell is filled, which subshell is filled next?A7fB7dC7pD7s Like 0 Discuss 0Share