Which group contains both metals and non metals

Groups 13–16 of the periodic table contain one or more metalloids, in addition to metals, nonmetals, or both. Group 13 is called the boron group, and boron is the only metalloid in this group.

Explanation:

Group 5A Contains metals, metalloids, and nonmetals.

Explanation:

Nitrogen is an important element in this group. Group 6A Contains both nonmetals, and metalloids. Oxygen and Sulfur are in this group. Group 7A This group contains only nonmetals.

*tilts head* sounds more like a statement

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.