The elements of Group IV A (also known as Group 14) are carbon (C), silicon (Si), germanium (Ge), tin (Sn), and lead (Pb). These elements are called the carbon family.
The chalcogen family (Group 16) includes oxygen, sulfur, selenium, tellurium, and polonium.
The nitrogen family (Group 15) includes nitrogen, phosphorus, arsenic, antimony, and bismuth.
The boron family (Group 13) includes boron, aluminum, gallium, indium, and thallium.