Which of the following statements is true about an element?

An element is defined as the simplest form of matter that cannot be broken down into simpler substances through chemical means. It consists entirely of one type of atom, which distinguishes it from compounds, which are made up of two or more different kinds of atoms bonded together. Elements are fundamental building blocks for all matter in the universe and can exist in solid, liquid, or gas states. This definition makes the statement about an element being the simplest form of matter not only accurate but foundational for understanding chemistry and the materials from which everything is made. The other options suggest characteristics that do not accurately describe elements, such as being composed of multiple kinds of atoms or implying that they can only exist as gases.