This statement is true.
Work Step by Step
An element cannot be broken down into simpler substances using ordinary chemical means by definition. Therefore, the definition of an element requires that it cannot be broken down into simpler substances, meaning that this part of the statement is true. Compounds, contrarily, can be broken down. Compounds consist of multiple atoms that are bonded together. These bonds can be broken, thus separating the atoms. Therefore, compounds can be broken down into simpler substances, while elements cannot.