Question

which of the following groups of elements are likely to have substances that have both metallic and non - metallic properties?
actinides
group 18
lanthanides
group 14

Explanation:

Group 14 elements contain carbon (non - metal), silicon and germanium (metalloids with both metallic and non - metallic properties), and tin and lead (metals). Actinides are mostly metals. Group 18 are noble gases (non - metals). Lanthanides are metals.

Answer:

D. Group 14