Answer:
When we talk about different substances from the point of view of chemistry and physics, we have to recognize each substance as unique and which can be characterized according to the different properties that said substance possesses. One of the most widely used ways to identify and classify from the point of view of chemistry is through the atoms that make it up.
Explanation:
We define an atom as the smallest particle into which an element can be divided, without losing its chemical properties.
At the time these particles were baptized, it was believed that they could not be effectively divided, although today we know that atoms are made up of even smaller particles, the so-called subatomic particles.
Substances are made of a particular group of elements (made up of their own unique atoms) in specific ratios and hence, have characteristics unique only to the specific substance.
Atoms are defined simply as the smallest unit of matter although there's the discovery of subatomic units like protons, neutrons and electrons.
Atoms of elements have unique properties and are unique to the respective element.
Substances are made of a particular group of elements in specific ratios and hence, have characteristics unique only to the specific substance.
Read more on atoms and substances;
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