Interactive periodic table with up-to-date element property data collected from authoritative sources. Look up chemical element names, symbols, atomic masses and other properties, visualize trends, or …

May 8, 2019 · Table View is the traditional periodic table any scientist would instantly recognize. List View provides a summary view, allowing you to see all properties available for each element at once.

PERIODIC TABLE OF ELEMENTSChemical Group Block 18

Explore how atomic radius changes with atomic number in the periodic table of elements via interactive plots.

PERIODIC TABLE OF ELEMENTS

Periodic Table Lead Lead is a chemical element with symbol Pb and atomic number 82. Classified as a post-transition metal, Lead is a solid at 25°C (room temperature).

Explore Resources Periodic Table of Elements Classification Browser Search and Analysis Tools Chemical Safety Information

Periodic Table Krypton Krypton is a chemical element with symbol Kr and atomic number 36. Classified as a noble gas, Krypton is a gas at 25°C (room temperature).

PERIODIC TABLE OF ELEMENTSElectronegativity 18

It has the highest equivalent weight of any element, and is the most unstable of the first 101 elements of the periodic system. Thirty-three isotopes of francium are recognized.