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.
Best Answer: The subnet mask is the network address plus the bits reserved for identifying the subnetwork. It's called a mask because it can be used to identify the subnet to which an IP address belongs by performing a bitwise AND operation on the mask and the IP address.est Answer: The subnet mask is the network address plus the bits reserved for identifying the subnetwork. It's called a mask because it can be used to identify the subnet to which an IP address belongs by performing a bitwise AND operation on the mask and the IP address.