Atoms have mass and take up space because atoms are a type of matter. Matter is anything that has mass and occupies space. Atoms are the basic building blocks of matter, composing everything around us.
1. Matter: Atoms fall under the category of matter, which is anything that has mass and occupies space. This means that atoms have weight and volume.
Understanding that atoms are a type of matter helps to explain why they exhibit properties such as mass and volume. This fundamental concept is essential in the study of chemistry and physics as it forms the basis of understanding the physical world around us.