Which group 14 element is a metalloid?
(1) tin (3) lead
(2) silicon (4) carbon

The group 14 element which is a metalloid is .

Further Explanation:

A chart of the elements that shows their arrangement in several horizontal rows and vertical columns is termed as the periodic table. Such horizontal rows are known as periods and vertical columns are called groups. This arrangement is done in accordance with the increasing atomic masses of the elements.

In the periodic table, elements with similar properties are grouped together to make their study much easier. These are also categorized into metals, non-metals, and metalloids. Metals are the elements that are situated on the left region of the table, while those present at the right side are non-metals. The elements between the metals and non-metals are known as metalloids.

Group 14 elements include carbon, silicon, germanium, tin, and lead. Silicon (Si) is a semiconductor that indicates its conductivity lies between that of an insulator and a conductor. It has high melting and boiling points and it forms a crystalline cubic structure on crystallization. It has a metallic luster in it and is brittle in nature. Since Si has properties of both the metals and non-metals, it is known as a metalloid or a semi-metal. Therefore option (2) is the correct answer.

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Answer details:

Grade: High School

Chapter: Periodic classification of elements

Subject: Chemistry

Keywords: metals, metalloids, non-metals, periodic table, rows, columns, groups, periods, group 14, elements, atomic masses, brittle, semi-metal, boiling point, semiconductor, silicon, carbon, tin, lead, germanium.

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