Daily Archives: May 31, 2015


Argon Ice
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
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