MDCAT Chemistry Past Paper 2023#Atomic Structure#Proton Mass616Choose the best answerWhat's the mass of one proton? (MDCAT 2023)AEqual to 1836 electronsBEqual to a positronCEqual to an electronDEqual to 1836 neutrons Like 0 Discuss 0Share
Atomic StructureQuantum Numbers617Choose the best answerIf an electron has mℓ = −3, the minimum possible principal quantum number is:A1B2C3D4 Like 0 Discuss 0Share
UHS MDCAT 2024 Chemistry#Atomic Structure#Electronic Configuration618Choose the best answerElectronic configuration of chromium is:A[Ar] 3d⁴ 4s²B[Ar] 3d⁵ 4s²C[Ar] 3d⁵ 4s¹D[Ar] 3d⁶ 4s² Like 0 Discuss 0Share
Atomic StructureDegenerate Orbitals619Choose the best answerIn the absence of an external electric or magnetic field, which pair of orbitals is degenerate?A2s and 3sB3dxy and 3dxzC3s and 3pD3p and 4p Like 0 Discuss 0Share
S & P Block ElementsGroup 2 Reactions with Water620Choose the best answerWhich statement correctly describes the reactions of Group 2 metals with water?ABe reacts vigorously with cold water, whereas Mg does not.BBe is unreactive, Mg reacts mainly with steam, while Ca, Sr and Ba react more readily.CAll Group 2 metals react equally with cold water.DOnly Be and Mg liberate H₂ from water. Like 0 Discuss 0Share