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, …

2019年5月8日 · Clicking an element in the PubChem Periodic Table directs you to the corresponding Element page. This page presents a wide variety of element information, …

Periodic Table element Summary Copper Copper is a chemical element with symbol Cu and atomic number 29. Classified as a transition metal, Copper is a solid at 25°C (room temperature).

Periodic Table element Summary Oxygen Oxygen is a chemical element with symbol O and atomic number 8. Classified as a nonmetal, Oxygen is a gas at 25°C (room temperature).

PubChem is the world's largest collection of freely accessible chemical information. Search chemicals by name, molecular formula, structure, and other identifiers. Find chemical and …

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

PERIODIC TABLE OF ELEMENTSElectronegativity 18

Periodic Table element Summary Sulfur Sulfur is a chemical element with symbol S and atomic number 16. Classified as a nonmetal, Sulfur is a solid at 25°C (room temperature).

Periodic Table element Summary Aluminum Aluminum is a chemical element with symbol Al and atomic number 13. Classified as a post-transition metal, Aluminum is a solid at 25°C (room …

PERIODIC TABLE OF ELEMENTS