What is the group number of the most nonmetallic group that contains metalloids?
16
What is the group number of the most metallic group that contains metalloids?
13
Explanation:
Metalloids are the substances which show properties of both metals and non-metals.
The left side of periodic table contains metals and on moving towards the right there are non-metals. Between the metals and non-metals there are metalloids.
Group 16 is the most non-metallic group that contains metalloids. In group 16, O, S, and Se are non-metals whereas Te and Po are metalloids.
Group 13 is the most metallic group that contains metalloids. In group 13, Al, Ga, In and Tl are all metals whereas boron is a metalloid.