Chapter 16.3, Problem 14R

To determine

To Classify: Metals, non-metals, and metalloids of given elements; K, Si, and S.

Explanation of Solution

Introduction:

The elements that form positive ions by loss of electrons during the chemical reaction are known as Metals.

The elements that gain electrons during the chemical reaction are known as Non-metals.

The elements having the properties of metals and non-metals are known as metalloids.

In periodic table, there is a zig-zag line which separates metals and non-metals. The elements which lie on this line are metalloids. The metals are placed on the left side of the diagonal line (left side in the table) and except hydrogen, non-metals are placed on the right of this diagonal line (right side in the table).

K − Potassium − Metal

Si − Silicon − Metalloid

S − Sulphur − Non-metal

Conclusion:

The periodic table provides the data of metals, non-metals, and metalloids with their specific position in the table.