High School

Choose the best option to complete the sentence below.

Most of the elements in the periodic table are:

A. metals
B. metalloids
C. gases
D. nonmetals

Answer :

Final answer:

Most elements in the periodic table are metals, making up over two-thirds of the total. Nonmetals are fewer in number and located primarily in the upper right corner. Metalloids serve as a bridge, possessing characteristics of both metals and nonmetals.


Explanation:

Understanding the Composition of the Periodic Table


Most of the elements in the periodic table are metals. In fact, over two-thirds of the elements are classified as metals, which are primarily located on the left side and in the center of the periodic table. For example, common metals include iron (Fe), gold (Au), and copper (Cu).


In contrast, nonmetals are found mostly on the upper right corner of the periodic table. There are fewer than 20 elements classified as nonmetals, such as oxygen (O), nitrogen (N), and sulfur (S). These elements typically lack the properties of metals and are poor conductors of electricity and heat.


Additionally, elements known as metalloids have properties that are intermediate between those of metals and nonmetals. Examples of metalloids include silicon (Si) and boron (B).


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