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Chapter 15ChemistryUpdated

Inorganic Chemistry

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  • ~17min read
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~17 min read

~17 min read
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Classification of Elements and Periodicity

1.1Why elements are classified

Why elements are classified

  • A chemical element consists of atoms having the same atomic number, meaning the same number of protons.
  • As the number of known elements increased, studying each element separately became inefficient.
  • Classification groups elements with related electronic structures and properties, making it possible to recognise patterns, trends and exceptions.
  • The periodic table arranges elements primarily by increasing atomic number and displays the periodic recurrence of chemical properties.

Inside this chapter

What Inorganic Chemistry covers

  1. Classification of Elements and Periodicity
  2. Early Attempts at Classification
  3. Mendeleev’s Periodic Table
  4. Modern Periodic Law
  5. Long-Form Periodic Table
  6. Blocks of the Periodic Table
  7. Metals, Non-Metals and Metalloids
  8. Periodic Trends: Underlying Ideas
  9. Periodic Trends in Chemical Properties
  10. Elements 101–118
  11. Artificial and Naturally Occurring Elements
  12. International Year of the Periodic Table
  13. Prelims Traps
All 30 chapters in Science and Technology
  1. Measurement/Unit
  2. Measuring instruments and Scales
  3. Mechanics
  4. Motion under Gravity
  5. Physical properties of matter
  6. Optics
  7. Heat and Thermodynamics
  8. Wave motion
  9. Sound
  10. Electric current
  11. Conductivity
  12. Nuclear Physics
  13. Atomic Structure
  14. Physical and Chemical Changes, Solution
  15. Inorganic Chemistry
  16. Metals, Minerals, Ores: Properties, Uses
  17. Alloys
  18. Non-metals
  19. Food preservation, Nutrition, Medicine, etc.
  20. Detergents and Soap
  21. Miscellaneous
  22. Subdivisions of Biology
  23. Evolution of Life
  24. Taxonomy
  25. Cell
  26. Heredity
  27. Biofertilizers
  28. Human Anatomy and Physiology
  29. Plant Physiology
  30. Diseases and Treatment

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