What is the basic unit of matter?

The basic unit of matter is the atom. Atoms are the smallest units of an element that still retain the properties of that element. They are made up of subatomic particles, including protons, neutrons, and electrons.

Protons have a positive charge, neutrons have no charge, and electrons have a negative charge. The number of protons in an atom determines its atomic number, which defines the element. The number of neutrons can vary, resulting in different isotopes of the same element.

Atoms combine to form molecules through chemical bonds. These bonds can be covalent, ionic, or metallic, depending on the elements involved and the type of bonding that occurs.

Overall, atoms are the building blocks of all matter and play a crucial role in determining the physical and chemical properties of substances.