Group 16 / VIA; Chalcogenides
or Oxygen Group
|Chalcogenides comes from Greek and means "ore formers". That is true enough since most ores are oxides or sulfides (plus a few carbonates). In less graecophilic times like right no (2011; Euro crisis, allegedly started by the Greeks but in truth by the American way of life), we call those elements "oxygen group"|
|Nothing needs to be said about the importance of oxygen (O). You can't do without for more then a few minutes, because oxidizing some of the slime inside you produces the energy needed to keep your entropy down and to get you going.|
|Sulfur (S), if disliked in steel, is
an important element in many products, e.g. you car tires. Sulfuric acid
(H2SO4 is produced in large quantities (100 Mio tons per
year) since it is indispensable in the chemical industry.
Selenium (Se) is found inside copy machines and in some solar cells. Tellurium (Te) is also found in high-tech compounds but only in small quantities.
Polonium (Po) is radioactive, so forget it.
|Table of Basic Data|
|In case of doubt all numbers are for room temperatures|
cubic; lattice const. = a
bcc = body centered cubic
sc = simple cubic
hp = simple hexagonal
hcp = hexagonal close packed; lattice constants a and c.
op = simple orthorhombic, monoclinic, triclinic
tp = simple tetragonal
dia = diamond structure
r = trigonal or rhomboedral trigonal
Periodic Table of the Elements
Bravais Lattices and Crystals
Diamond, and other Carbon Specialities
Lattice and Crystal
Units and Constants
© H. Föll (Iron, Steel and Swords script)