Why an atom is a particle but an element is a category
In short: Understanding the distinction between atoms and elements is fundamental to chemistry. This video clarifies how individual particles relate to the broader categories found on the Periodic Table.
An atom is a single particle composed of protons, neutrons, and electrons. In contrast, an element is a classification system. We define an element as a category of atoms that share the same atomic number—specifically, the same number of protons.
Because different atoms can have different numbers of neutrons while keeping their proton count the same, they are known as isotopes. For example, the element Carbon consists of atoms that all have six protons, but may contain six, seven, or eight neutrons.
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Sources
- Summary by Intellect · source: Difference between Atoms and Elements
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