Ch.8 - Periodic Properties of the ElementsWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: All of the following electronic configurations are correct  except a) 20Ca  [Ar]4s2 b) 25Mn  [Ar] 3d54s2 c) 29Cu  [Ar] 3d104s1 d) 50Sn   [Kr]4d105s25p2 e) 86Rn  [Xe]5d106s26p6

Problem

All of the following electronic configurations are correct  except

a) 20Ca  [Ar]4s2

b) 25Mn  [Ar] 3d54s2

c) 29Cu  [Ar] 3d104s1

d) 50Sn   [Kr]4d105s25p2

e) 86Rn  [Xe]5d106s26p6