Which is a key component of the energy molecule ATP? sodium phosphorus chlorine sulfur

## Step 1<br />Adenosine Triphosphate (ATP) is a molecule that carries energy within cells. It is the main energy currency of the cell, and it is used to power many cellular processes.<br />## Step 2<br />The ATP molecule is composed of three: adenine, ribose (a sugar), and three phosphate groups.<br />## Step 3<br />Among the options provided, sodium, chlorine, and sulfur are not part of the ATP molecule.<br />## Step 4<br />The key component of ATP among the given options is phosphorus, which is found in the phosphate groups.