Classification of Elements and Periodicity – Interactive Quiz & Cheatsheet

Master the periodic table, trends, and classifications with this engaging quiz

Updated: 2 minutes ago

Categories: Mini Game, Chemistry, Class 11, Inorganic Chemistry
Tags: Mini Game, Chemistry, Class 11, Periodic Table, Periodicity, Classification of Elements
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Classification of Elements and Periodicity Cheatsheet & Quiz

Classification of Elements and Periodicity Cheatsheet

Cheat Codes & Shortcuts

  • Periodic Table: Elements arranged in order of increasing atomic number showing periodicity in properties.
  • Periods: Horizontal rows with properties changing gradually.
  • Groups: Vertical columns with elements having similar chemical properties.
  • Periodic Law: Properties of elements are periodic functions of their atomic numbers.
  • Atomic Radius: Decreases across a period, increases down a group.
  • Ionization Energy: Energy required to remove an electron; increases across a period, decreases down a group.
  • Electron Affinity: Tendency to gain electrons, generally increases across a period.
  • Electronegativity: Ability to attract electrons; increases across periods and decreases down groups.
  • Metallic and Non-metallic Character: Metals are on left and center, nonmetals on right; metallic character decreases across period.
  • Transition Elements: Occupy d-block with variable oxidation states and colored compounds.

Quick Reference Table

Property Trend Across Period Trend Down Group
Atomic Radius Decreases Increases
Ionization Energy Increases Decreases
Electron Affinity Generally increases Decreases
Electronegativity Increases Decreases
Metallic Character Decreases Increases

Advice

Memorize Trends: Understand how atomic and chemical properties change in periodic table.

Group Elements: Focus on properties of groups like alkali metals, halogens, noble gases.

Link Properties: Relate atomic radius with ionization energy and electronegativity trends.

Understand Exceptions: Be aware of anomalies in periodic trends.

Transition Elements: Know unique properties like multiple oxidation states and colored ions.

Classification and Periodicity Quick Tips

  • Periods: Properties change gradually from metallic to non-metallic.
  • Groups: Elements share valence electron configuration and chemical properties.
  • Atomic Size: Decreases across a period due to increased nuclear charge.
  • Ionization Energy: Increases across period, decreases down group.
  • Electronegativity: Greatest for fluorine; decreases down groups.

Classification of Elements and Periodicity Quiz

Test your knowledge with 5 questions! You have 30 seconds per question.