Which term describes a substance made of only one type of atom?

Which term describes a substance made of only one type of atom?

• A. Compound
• B. Homogeneous mixture
• C. Element
• D. Solution

Answer: (C)

The term that describes a substance made of only one type of atom is "element." An element is a pure substance that cannot be broken down into simpler substances by chemical means. Each element is defined by the number of protons in its atomic nucleus, which is referred to as the atomic number. Elements are the fundamental building blocks of all matter and are represented on the periodic table. In contrast, a compound consists of two or more different types of atoms chemically bonded together, forming a new substance with properties different from the individual elements that compose it. A homogeneous mixture consists of two or more substances that are uniformly distributed throughout, meaning the composition is consistent but not made from a single type of atom. A solution is a specific type of homogeneous mixture where one substance (solute) is dissolved in another (solvent).

The term that describes a substance made of only one type of atom is "element." An element is a pure substance that cannot be broken down into simpler substances by chemical means. Each element is defined by the number of protons in its atomic nucleus, which is referred to as the atomic number. Elements are the fundamental building blocks of all matter and are represented on the periodic table.

In contrast, a compound consists of two or more different types of atoms chemically bonded together, forming a new substance with properties different from the individual elements that compose it. A homogeneous mixture consists of two or more substances that are uniformly distributed throughout, meaning the composition is consistent but not made from a single type of atom. A solution is a specific type of homogeneous mixture where one substance (solute) is dissolved in another (solvent).