Cadmium and its congeners are not always considered transition metals, in that they do not have partly filled d or f electron shells in the elemental or common oxidation states. The average concentration of cadmium in Earth's crust is between 0.1 and 0.5 parts per million (ppm).admium and its congeners are not always considered transition metals, in that they do not have partly filled d or f electron shells in the elemental or common oxidation states. The average concentration of cadmium in Earth's crust is between 0.1 and 0.5 parts per million (ppm).
Subnetwork (Subnet) Definition - What does Subnetwork (Subnet) mean? A subnetwork (subnet) is a separate and identifiable portion of an organizationâs network, typically a local area network (LAN) comprised of all the machines on one floor, building or geographical location.
noun. 1  a. 2  An openwork fabric or structure; a net or network: a screen made of wire mesh. 3  often meshes Something that snares or entraps: âArabia had become entangled in the meshes of â¦ politicsâ ( W. Montgomery Watt 4  ) a.