During a science closs Ladrevio and Connor were discussing elements. Lostrevia asked, "Which of the following elements is a metallaid? Argon Iron Calcium Silicon

## Step 1<br />The problem is asking us to identify which of the given elements is a metalloid. Metalloids are elements that have properties of both metals and non-metals. They are found along the stair-step line on the periodic table, which includes elements such as Boron, Silicon, Germanium, Arsenic, Antimony, Tellurium, and Polonium.<br /><br />## Step 2<br />Looking at the options provided, we need to identify which one is a metalloid. The options are Argon, Iron, Calcium, and Silicon.<br /><br />## Step 3<br />Among these options, only Silicon is a metalloid. It has properties of both metals and non-metals, which is characteristic of metalloids.