A particular atom will have the same number of protons and electrons and most atoms have at least as many neutrons as protons.

An element is a substance that is made entirely from one type of atom.

Understanding Atoms and Compounds
Atoms and compounds are fundamental concepts in chemistry, representing the building blocks of matter.
What is an Atom?
- An atom is the smallest unit of matter that retains the properties of an element.
- It consists of three primary subatomic particles: protons (positive charge), neutrons (neutral charge), and electrons (negative charge).
- Atoms combine to form molecules, which can be either elements or compounds.
What is a Compound?
- A compound is a substance formed when two or more different types of atoms bond together in a fixed ratio.
- Compounds have unique properties that are distinct from the individual elements that compose them.
- Common examples include water (H2O), carbon dioxide (CO2), and sodium chloride (NaCl).
Key Differences Between Atoms and Compounds
- Composition:
- Atoms are single units of elements.
- Compounds consist of multiple atoms of different elements.
- Properties:
- Atoms retain the characteristics of their respective elements.
- Compounds exhibit properties that differ from the elements within them.
- Formation:
- Atoms can exist independently.
- Compounds are formed through chemical reactions between atoms.
Conclusion
In summary, understanding the differences between atoms and compounds is essential for grasping the concepts of matter and chemistry. Atoms serve as the basic units, while compounds represent complex combinations that lead to diverse chemical phenomena. This knowledge lays the foundation for further exploration in the study of matter.