7. Which group of elements does not have metallic properties? alkali metals
alkaline earth elements
o noble gases
0

Typically non-metals are not able to conduct electricity or heat very well and are often gases, such as oxygen, or solids, like carbon. Therefore, non-metals are the elements in groups 14-16 of the periodic table.

the mantle

explanation:

earth is divided into three layers: the crust or the outermost layer on which we live; the underlying, middle layer - the mantle - and the core (the innermost layer of earth).