Chapter 16, Problem 3STP

To determine

To Choose: The correct option.

Answer to Problem 3STP

B. Metalloids.

Explanation of Solution

Introduction:

The atoms of different elements display different chemical behavior. The elements of the similar chemical property are in vertical columns called groups. 

The group B elements are called metalloids in the given table in-between region A and C. Metalloids have intermediate properties of that between metals and nonmetals. 

The metalloids are silicon (Si), boron (B), arsenic (Ar), germanium (Gr), etc are found in the periodic table’s step-like region (marked as region B) between metals and nonmetals. Some of the metalloids are used in electronic devices as a semi-conductor like silicon and germanium.

Conclusion: 

The region B metals are called metalloids in the periodic table.