Periodic Table
Interactive periodic table with element details, search, and filters
FAQ
How is the periodic table organized?
The periodic table organizes elements by increasing atomic number. Elements in the same column (group) have similar chemical properties. Rows (periods) indicate the number of electron shells.
What is electronegativity?
Electronegativity is a measure of an atom's ability to attract electrons in a chemical bond. Fluorine has the highest electronegativity (3.98), while cesium and francium have the lowest.
What are the main groups in the periodic table?
Main groups include: Alkali Metals (Group 1), Alkaline Earth Metals (Group 2), Halogens (Group 17), Noble Gases (Group 18), and Transition Metals (Groups 3-12).
How do I read electron configuration?
Electron configuration shows how electrons are distributed in atomic orbitals. For example, carbon (1s² 2s² 2p²) has 2 electrons in 1s, 2 in 2s, and 2 in 2p orbital.
