The Periodic Table and Periodic Trends

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Paid

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Level

Intermediate

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Free

Last updated on June 24, 2026 12:04 pm

In this free online chemistry course, you will learn about the Periodic Table of Elements, Periodic Classifications, Periodic Trends and various Periodic Laws.

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Our understanding of elements and physics has grown exponentially since the inception of the periodic table of elements in the late 19th century. This free online course will give you a broader understanding of earlier- and modern periodic classifications, the specific periodic trends in atomic radii and ionic radii of elements as well as periodic trends in ionization enthalpy and the electron gain enthalpy of elements.

What You Will Learn In This Free Course

  • Discuss Johann Dobereiner?s classifi…
  • Explain Newlands classification and …
  • List the merits and demerits of Mend…
  • Summarize the modern periodic law an…
  • Discuss Johann Dobereiner?s classification and A.E.B. de Chancourtois classification
  • Explain Newlands classification and Lothar Meyer?s classification
  • List the merits and demerits of Mendeleev?s classification
  • Summarize the modern periodic law and long form of periodic table
  • Recall the characteristics and properties of s, p, d and f – block elements
  • Distinguish covalent radius, metallic radius and Van der Waal?s radius
  • Paraphrase the periodic trends in atomic radii and ionic radii of elements
  • Recognize the factors affecting ionization enthalpy and electron gain enthalpy
  • Outline the periodic trends in ionization enthalpy and electron gain enthalpy of elements
  • Describe the variation of electronegativity and valence in periods and groups
  • Periodic Classifications

    This module covers earlier periodic classifications and modern periodic classification. It will discuss modern periodic law. This module will help you to understand the characteristics and properties of s, p, d and f – block elements.

    Periodic Trends

    In this module learn about the periodic trends in atomic radii and ionic radii. This module covers the periodic trends in ionization enthalpy and electron gain enthalpy. It will also discuss the periodic trends in electronegativity and oxidation states.

    Course assessment

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