Step-by-step explanation:
When looking across the periodic table from left to right, which is the first group that contains nonmetals is group 14.
The elements of group 14 are carbon (C), silicon (Si), germanium (Ge), tin (Sn), and lead (Pb). Where carbon is a non-metal, silicon (Si) and germanium (Ge) are metalloids, tin (Sn) and lead (Pb) are metals.