What is an atom?
Understand the Problem
The question is asking about the definition of an atom, its characteristics, and its components, including protons, neutrons, and electrons.
Answer
An atom is the smallest unit of matter with protons, neutrons, and electrons.
The final answer is an atom is the smallest unit of matter that retains the properties of an element. It consists of a nucleus containing protons and neutrons, surrounded by electrons.
Answer for screen readers
The final answer is an atom is the smallest unit of matter that retains the properties of an element. It consists of a nucleus containing protons and neutrons, surrounded by electrons.
More Information
Atoms are composed of three main subatomic particles: protons (positively charged), electrons (negatively charged), and neutrons (neutral). The arrangement and number of these particles determine the element and its chemical behavior.
Tips
Avoid confusing atoms with molecules; atoms form molecules.
Sources
- Atom | Definition, Structure, History, Examples, Diagram, & Facts - britannica.com
- Atom - Wikipedia - en.wikipedia.org
- What Is An Atom ? | NRC.gov - nrc.gov
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