- have four
valence electrons (see below). They are also
known as the
crystallogens or adamantogens. Like
other groups, the
members of this
family show...
-
described on a group-by-group
basis as:
group 13, the icosagens; 14, the
crystallogens; 15, the pnictogens; 16, the chalcogens; 17, the halogens; and 18, the...
-
trielsb icosagens earth metals Group 14 IVB IVA
carbon group tetrelsc crystallogens adamantogens merylides Group 15 VB VA
nitrogen group pnictogens pentelsn...
- Ions
names and
symbols Halogens Chalcogens Pnictogens Crystallogens Fluoride F−
Chloride Cl−
Bromide Br−
Iodide I−
Perchlorate ClO− 4
Oxide O2− Hydroxide...
- and a pnictogen – such as ****nic or phosphorus – , a chalcogen, or a
crystallogen. This is
currently the
family with the
second highest critical temperature...
- charge-reservoir block. It has also been
found that some iron
chalcogens and
crystallogens superconduct. The
crystalline material,
known chemically as LaOFeAs...
