Calcium: Metal, Nonmetal, Or Metalloid?

Periodic Table


Have you ever wondered whether calcium is a metal, nonmetal, or metalloid? Calcium is a chemical element with the symbol Ca and atomic number 20. It is an alkaline earth metal and is the fifth most abundant element in the Earth’s crust. In this article, we will explore the properties of calcium and determine whether it is a metal, nonmetal, or metalloid.

Properties of Calcium

Calcium is a silvery-white metal that is relatively soft and ductile. It is a reactive metal that easily forms a gray oxide coating when exposed to air. Calcium is also a good conductor of electricity and has a high melting point of 842°C. It is essential for living organisms, as it plays a crucial role in bone and teeth formation, muscle function, and nerve transmission.

Is Calcium a Metal?

Yes, calcium is a metal. It belongs to the group of alkaline earth metals, which includes beryllium, magnesium, strontium, barium, and radium. Alkaline earth metals are characterized by their softness, high reactivity, and low density. Calcium shares these properties with other metals in its group.

Why is Calcium a Metal?

Calcium is a metal because it has several properties that are typical of metals. These properties include its metallic luster, ductility, high melting point, and good electrical conductivity. Calcium also readily gives up its two valence electrons to form a positive ion, which is a characteristic of metals.

Nonmetal or Metalloid?

Calcium is definitely not a nonmetal. Nonmetals are elements that lack metallic properties, such as luster and electrical conductivity. Calcium possesses these properties and is therefore classified as a metal. Calcium is also not a metalloid, which is an element that has properties of both metals and nonmetals. Although calcium has some properties that are similar to metalloids, such as its reactivity and ability to form covalent bonds, it is still considered a metal.

Uses of Calcium

Calcium has many uses in industry and everyday life. One of the most important uses of calcium is in the production of steel, where it is used to remove impurities from the iron ore. Calcium is also used in the production of cement, as a reducing agent in the extraction of metals, and as a deoxidizer in the production of alloys. In addition, calcium is essential for human and animal health, as it is required for strong bones and teeth.


In summary, calcium is a metal that belongs to the group of alkaline earth metals. It possesses metallic properties, such as luster, ductility, and good electrical conductivity. Calcium is not a nonmetal or a metalloid, as it lacks the properties of nonmetals and has distinct properties from metalloids. Calcium has many important uses in industry and is essential for human and animal health.