Daily Archives: May 31, 2015


Argon Ice 1
Argon is the 18th element of the periodic table. These argon facts contain chemical and physical data along with general information and history. Basic Argon Facts Name: Argon Atomic Number: 18 Element Symbol: Ar Group: 18 Period: 3 Block: p Element Family: Noble Gas Atomic Mass: 39.948(1) Electron Configuration: [Ne]3s23p6 (shorthand) or 1s22s22p63s23p6 (full) Discovery: Lord Rayleigh and Sir William Ramsay in 1894 Rayleigh noticed a […]

Argon Facts


One interesting chlorine element fact is that the liquid is yellow. Credit: Workingclass91/Creative Commons 1
Chlorine is the 17th element of the periodic table. These chlorine facts contain chemical and physical data along with general information and history. Basic Chlorine Facts Name: Chlorine Atomic Number: 17 Element Symbol: Cl Group: 17 Period: 3 Block: p Element Family: Halogen Atomic Mass: [35.446; 35.457] IUPAC guidelines to reflect the physical and chemical history of the magnesium sample. If […]

Chlorine Facts