Who is Known as the Father of the Periodic Table?

Last Updated: Jun 3, 2026, 16:23 IST

Learn who is known as the Father of the Periodic Table, why Dmitri Mendeleev earned this title, his contributions to chemistry, the elements he predicted, and how his periodic table compares with the modern periodic table.

Who is Known as the Father of the Periodic Table?
Who is Known as the Father of the Periodic Table?

The periodic table is one of the most essential tools in science ever invented by man due to its significance in helping scientists learn more about the nature and properties of chemical elements. 

Today’s periodic table features 118 chemical elements based on their properties and atomic structures.

Dmitri Mendeleev, a Russian scientist, is known as the Father of the Periodic Table. Mendeleev was the first person ever to invent the periodic table in the world. 

Dmitri Mendeleev introduced the concept of the periodic table in 1869.

father of the periodic table

Who is Known as the Father of the Periodic Table?

Dmitri Mendeleev is known as the Father of the Periodic Table. He was a Russian scientist  who brought about a change in the organization of elements which completely revolutionized the world of chemistry.

Mendeleev was born in 1834 in Siberia, Russia. At that time, there was little knowledge about the existing elements, it was him who observed that some properties kept recurring periodically in elements when classified based on their atomic weight. 

Mendeleev’s observation about the elements led him to establish the Periodic Law and Periodic Table.

Did You Know?

Dmitri Mendeleev created vacant spots in his Periodic Table for undiscovered elements. He correctly predicted the properties of the undiscovered elements that were to be discovered in years to come.

Why is Dmitri Mendeleev Known as the Father of Periodic the Table?

Dmitri Mendeleev became known as the Father of the Periodic Table because he formulated the first periodic table and established the periodic relation between chemical elements.

In contrast with previous classification systems, Mendeleev classified the elements on the basis of ascending order of atomic weights, putting elements having identical chemical behaviors into one group. 

It was his ability to recognize patterns which no other scientist was able to discover.

Mendeleev's most remarkable accomplishment is his courage to leave spaces for elements whose discovery was not yet made but whose presence was required. 

Rather than fitting his findings to the knowledge he had, he had faith in the pattern and made some predictions, which when proved right upon the discovery of gallium, scandium, and germanium earned him widespread recognition.

What is Dmitri Mendeleev Best Known For?

Dmitri Mendeleev is best known for his formulation of the periodic classification of chemical elements and the Periodic Law.

The periodic classification by Mendeleev helped scientists comprehend the relationship between chemical elements. 

The organization of all known elements into such a structure made chemistry easy to learn and predict. His periodical system proved to be an efficient research instrument.

Nevertheless, apart from the periodic table, Mendeleev was a renowned teacher and scientist. He lectured on chemistry, authored several books, and took part in numerous discussions of science related to gases, liquids, and applied chemistry.

What were Dmitri Mendeleev's Contributions in the Periodic Table?

Dmitri Mendeleev’s contributions to chemistry include a number of breakthrough discoveries that have significantly influenced modern science.

  1. Mendeleev developed the system of arranging the known elements according to atomic weights and their periodic properties. 

  2. He introduced the idea of the periodic law that accounts for the periodicity of properties among elements. 

  3. Dmitri also revised atomic weights that contradicted the periodic laws he discovered.

  4. Mendeleev predicted several yet unknown elements with their characteristics. His accurate predictions regarding scandium, gallium, and germanium gained wide recognition.

Dmitri Mendeleev's Periodic Table vs Modern Periodic table

Mendeleev’s periodic table was revolutionary, but modern scientific discoveries have led to important improvements.

Feature

Mendeleev’s Periodic Table

Modern Periodic Table

Introduced by

Dmitri Mendeleev

Henry Moseley

Basis of Arrangement

Atomic Weight

Atomic Number

Year Introduced

1869

1913

Number of Elements

About 63 known elements

118 known elements

Gaps for Unknown Elements

Yes

Mostly complete

Noble Gases

Not included initially

Included as a separate group

Scientific Basis

Periodic Law based on atomic weight

Electron configuration and atomic structure

Accuracy

Highly effective for its time

More accurate and comprehensive

The periodic table in use today holds on to Mendeleev's key concept of periodicity but replaces atomic weight with atomic number. This change eliminated many problems that were previously present.

Even though the currently used periodic table was introduced by Henry Moseley, Dmitri Mendeleev is still called the father of the Periodic table because he was the first person to understand the characteristics of the elements. 

What Four Elements Did Mendeleev Discover?

One popular exam question revolves around the discussion about the elements which Mendeleev discovered. 

It should be noted that Mendeleev never discovered these elements; rather, he was able to accurately predict their existence before these elements were even discovered.

The best example of predicted elements by Mendeleev is Scandium, Gallium, and Germanium. Before these elements were discovered, Mendeleev named them Eka-boron, Eka-aluminium, and Eka-silicon respectively. 

Scientists have been able to confirm the properties of these elements as per the predictions of Mendeleev.

Certain educational institutions also cite Technetium as another element predicted by Mendeleev based on periodic law. 

However, the three best examples which strongly prove his predictions are Scandium, Gallium, and Germanium.

Conclusion

Dmitri Mendeleev was rightly titled the Father of the Periodic Table, as he developed the first periodic table and used his theory of periodicity to discover missing elements from his list. Mendeleev’s periodic law revolutionized science and is relevant even in today’s studies. The significance of understanding Mendeleev’s role in development will help you prepare well for NEET, JEE, SSC, IBPS, and UPSC examinations.

Alisha Louis is a US Content Specialist with a Bachelor of Journalism and Mass Communication (BJMC) graduate degree. With over 3 years of experience and a keen eye for detail and a passion for storytelling, she specializes in covering trending news and educational developments across the United States. Her articles combine journalistic POV with engaging narratives, making complex topics accessible and relevant for global audiences. Dedicated to delivering timely and trustworthy content, Alisha brings a fresh, insightful perspective to every piece she writes.

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First Published: Jun 3, 2026, 16:23 IST

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