Question 4 Which of the following is an element? For Teacher Use Only NONEDOK1.423000.M1.L3.97: bronze brass iron steel

## Step 1The problem asks us to identify an element from the given options. An element is a pure substance that consists of only one type of atom. In chemistry, elements are represented by one or two letters, which are derived from Latin, Greek, or English. The first letter is always capitalized.## Step 2Looking at the options provided, we can see that "iron" stands for the element with the chemical symbol , which is a known chemical element.## Step 3The other options, bronze, brass, and steel, are alloys. Alloys are mixtures of two or more elements, usually metals, and do not represent a single type of atom.#