Democritus, or possibly his mentor Leucippus, is the answer you're probably looking for.
However, atomos is fairly straightforward Greek meaning "indivisible" (it comes from a- "not" and tomos"cut"), so it's likely that someone used the word before they did; they didn't just make it up themselves.
"Atomos" is a Greek word meaning "uncuttable" or "indivisible." It was used by the ancient Greeks to describe the smallest possible unit of matter that could not be divided further.
The Greek word "atomos" means indivisible or uncuttable. It was used by ancient Greek philosophers to describe a fundamental unit of matter that cannot be divided further.
The word "atomos" was used to describe indivisible particles that make up matter by ancient Greek philosophers such as Democritus. These particles were thought to be the building blocks of everything in the universe.
The word "atom" is derived from the Greek word "atomos," which means indivisible. This term was used by ancient Greek philosophers to describe the smallest possible unit of matter that cannot be divided further.
Quantum refers to the smallest discrete quantity of a physical property that can exist independently. In physics, it is used to describe the smallest possible unit of energy, typically associated with the behavior of subatomic particles. It is also used more broadly to describe something as being fundamentally discrete or indivisible.
"Atomos" is a Greek word meaning "uncuttable" or "indivisible." It was used by the ancient Greeks to describe the smallest possible unit of matter that could not be divided further.
The Greek word "atomos" means indivisible or uncuttable. It was used by ancient Greek philosophers to describe a fundamental unit of matter that cannot be divided further.
The word "atomos" was used to describe indivisible particles that make up matter by ancient Greek philosophers such as Democritus. These particles were thought to be the building blocks of everything in the universe.
Democritus called the smallest piece of matter "atomos" because it means indivisible in Greek. He believed that matter could not be divided infinitely and that substances were made up of tiny, indivisible particles called atoms.
The Greek meaning of atom is 'UNCUTABLE.' or "UNDIVISIBLE"
I think Thales or Democritus
Lucretius, Leucippus and Democritus all used the Latin word atomus, from the Greek atomos meaning irreducible or uncuttable to describe the nature of matter. The English chemist John Dalton resurrected the lost word in 1805.
The word "atom" is derived from the Greek word "atomos," which means indivisible. This term was used by ancient Greek philosophers to describe the smallest possible unit of matter that cannot be divided further.
The Greeks, from the word atomon, meaning "uncuttable, indivisible."
Actually it comes from a word which means NOT to be able separate. It comes from α- (which is used to show that the word is negative) and τομή [tomi] which means to cut/seperate.
Atom comes from the Greek word meaning indivisible. This was because it was thought that atoms were indivisible then. Now we know that atoms are not infact indivisible but are made up of electrons, neutrons and protons.
John Dalton used the Greek word "atomos," meaning indivisible or invisible, to describe atoms because he believed that atoms were the smallest, indivisible particles that made up all matter. Dalton's atomic theory proposed that all elements are made up of tiny, indestructible particles called atoms, which combine in simple whole number ratios to form compounds. The use of the term "atomos" reflected Dalton's belief in the fundamental, invisible nature of these building blocks of matter.