USATestPrep Question: This is a substance that cannot be broken down further by chemical means. Example: sodium, tungsten, and iodine.
USATestPrep Question: This is a substance that cannot be broken down further by chemical means. Example: sodium, tungsten, and iodine.
The first answerer is correct. (Mark them Brainliest)
Hope this helps.
Elements are substances that cannot be broken further down by chemical (or physical, for that matter) means. Sodium, tungsten, and iodine are all examples of chemical elements.