periodic table

Table of Contents

Introduction & Top Questions
History of the periodic law
- Classification of the elements
  - The first periodic table
  - Other versions of the periodic table
- Predictive value of the periodic law
  - Discovery of new elements
  - Significance of atomic numbers
  - Elucidation of the periodic law
The periodic table
- Periods
- Groups
  - Classification of elements into groups
  - Periodic trends in properties
The basis of the periodic system
- Electronic structure
- Periodicity of properties of the elements
Other chemical and physical classifications

References & Edit History Quick Facts & Related Topics

Images, Videos & Interactives

Interactive periodic table

Understanding the organization of the periodic table

periodic table with atomic number, symbol, and atomic weight

What is the periodic law?

periodic system of elements with periods demarcated by noble gases

long-period form of periodic system of elements

short-period form of periodic system of elements, 1930

Who created the periodic table?

periodic table with electron configurations

For Students

periodic table summary

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periodic table: Facts & Related Content

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Facts

Also Known As	periodic table of the elements

Photos and Videos

periodic table with atomic number, symbol, and atomic weight

periodic system of elements with periods demarcated by noble gases

long-period form of periodic system of elements

short-period form of periodic system of elements, 1930

periodic table with electron configurations

periodic table with room-temperature state

Mendeleev's periodic table

periodic table with column indicating subshells

electronegativity values of the elements in the periodic table

Understanding the organization of the periodic table

What is the periodic law?

Who created the periodic table?

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Topics

periodic law group period atom chemical element chemical symbol subatomic particle rare-earth element radioactivity isotope atomism transition metal hydrogen alkali metal actinoid element

Dig Deeper: More Articles That Discuss This Topic

Key People

Dmitri Mendeleev

Dmitri Mendeleev

Russian scientist

Lothar Meyer

German chemist

Paul-Émile Lecoq de Boisbaudran

French chemist

Quiz

Periodic table of the elements. Left column indicates the subshells that are being filled as atomic number Z increases. The body of the table shows element symbols and Z. analysis and measurement

Periodic Table of the Elements

Periodic Table of the elements concept image (chemistry)

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Concept artwork on the periodic table of elements.

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Periodic table of the elements. Left column indicates the subshells that are being filled as atomic number Z increases. The body of the table shows element symbols and Z. analysis and measurement

Periodic Table of the Elements

Periodic table of the elements. Left column indicates the subshells that are being filled as atomic number Z increases. The body of the table shows element symbols and Z. analysis and measurement

Periodic Table of the Elements