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, …

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

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

Chemical element, Mercury, information from authoritative sources. Look up properties, history, uses, and more.

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

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

2.5-11.5% Dextrose injections are administered by peripheral IV infusion to provide calories and water for hydration; these injections may be admixed with amino acids injections or other …

PERIODIC TABLE OF ELEMENTS Electronegativity 17 Atomic Number Cl Symbol Chlorine Name 3.16 Electronegativity (Pauling Scale) 1 H Hydrogen 2.2 1 1 2 He Helium 18

Relative atomic mass is the ratio of the average mass of the atom to the unified atomic mass unit (symbol: u) or dalton (symbol: Da), which is defined as one twelfth of the mass of a carbon-12 …