⚗️
Periodic Table Explorer
Interactive table with quick data per element.
Periodic Table
Element Details
Click on an element to view its details.
About the Periodic Table
History
The periodic table was first created by Russian chemist Dmitri Mendeleev in 1869. He organized the elements by atomic weight and chemical properties, leaving gaps for undiscovered elements. The modern periodic table is organized by atomic number (number of protons).
Organization
Elements are arranged in order of increasing atomic number. The table is organized into periods (rows) and groups (columns). Elements in the same group have similar chemical properties due to having the same number of electrons in their outer shell.
Element Categories
Noble Gases
Halogens
Alkali Metals
Alkaline Earth Metals
Transition Metals
Metalloids
Post-Transition Metals
Lanthanides
Actinides
Non-Metals