Matter is made up of atoms from "summary" of Physics 11 by British Columbia. Schools Department. Curriculum Development Branch
The idea that matter is composed of atoms is a fundamental concept in the field of physics. Atoms are the building blocks of all matter in the universe. These tiny particles combine in various ways to form everything we see and interact with in our everyday lives. From the air we breathe to the food we eat, everything is ultimately made up of atoms. Atoms themselves are incredibly small, so small that they cannot be seen with the naked eye. In fact, atoms are so small that even powerful microscopes struggle to capture their image. Despite their size, atoms are made up of even smaller particles called protons, neutrons, and electrons. Protons and neutrons are located in the nucleus of the atom, while electrons orbit around the nucleus in specific energy levels. The different combinations of protons, neutrons, and electrons give each type of atom its unique characteristics. For example, an atom with one proton is hydrogen, while an atom with six protons is carbon. These atoms can combine with one another through chemical reactions to form molecules, which are the building blocks of compounds. The concept of atoms explains many of the physical properties of matter. For instance, the way atoms are arranged and interact with one another determines whether a substance is a solid, liquid, or gas. The behavior of atoms also explains why some materials conduct electricity while others do not. Understanding that matter is made up of atoms has revolutionized the field of physics and has led to countless advancements in technology and medicine. By studying the behavior of atoms, scientists have been able to develop new materials, create life-saving medications, and unlock the mysteries of the universe. Atoms truly are the building blocks of our world, shaping everything from the air we breathe to the stars in the sky.
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