What are atoms and why are they considered the basic units of matter?
Answer (1)
Atoms are the smallest units of an element that still retain the properties of that element. They are like tiny building blocks that make up all matter—everything we can see, touch, and even things we cannot see, like air. Atoms consist of three main subatomic particles: protons (which carry a positive charge), neutrons (which have no charge), and electrons (which carry a negative charge).Protons and neutrons are located at the center of the atom, in a part called the nucleus. Electrons, on the other hand, move around the nucleus in orbitals or shells. The number of protons determines what type of element the atom is. For example, if an atom has 6 protons, it is always a carbon atom. This is called the atomic number.Atoms are extremely small, but they are important because they combine to form molecules and compounds. For example, two hydrogen atoms and one oxygen atom come together to form a water molecule (H₂O). This is important because water is essential for all forms of life.In anatomy and physiology, understanding atoms helps us understand how the body’s chemicals interact. Every cell in the human body uses atoms and molecules in chemical reactions to produce energy, build tissues, and maintain life.In short, atoms are like LEGO bricks—simple but powerful. Even though you can’t see them with your eyes, they are behind every living process in your body.
