Around 1800, the English chemist John brought back Democritus' ancient idea of the atom.
I think you are referring to the English chemist John Dalton. John Dalton is credited with bringing back Democritus' ancient idea of the atom in the early 19th century, around 1800. He formulated the modern atomic theory, which stated that all matter is composed of small indivisible particles called atoms. This theory laid the foundation for our understanding of the atom and its properties, such as atomic structure and chemical reactions.
John Dalton, an English chemist, is known for bringing back Democritus' ancient idea of the atom around 1800. Dalton's atomic theory proposed that all matter is made up of tiny, indivisible particles called atoms. He believed that each element is made up of its own unique type of atom and that atoms of different elements combine to form compounds. Dalton's work laid the foundation for our modern understanding of atomic structure and chemical reactions.
To verify the statement that the English chemist John brought back Democritus' ancient idea of the atom around 1800, you can follow these steps:
1. Identify the English chemists who were active around 1800. Conducting a search or referring to historical records can help you compile a list of notable English chemists from that time period.
2. Research the contributions and discoveries made by each chemist on your list. Look for any references or evidence that supports the claim that one of them brought back Democritus' idea of the atom.
3. Pay particular attention to the life and work of John Dalton, as he is often associated with the development of atomic theory during this time period. John Dalton was an English chemist who proposed his atomic theory in the early 19th century, which built upon Democritus' concept of atoms.
4. Study Dalton's atomic theory to understand how it relates to Democritus' idea of the atom. Dalton's theory postulated that elements are composed of indivisible and indestructible particles called atoms, which correlate with Democritus' concept of atoms being the fundamental building blocks of matter.
By following these steps, you should be able to verify whether or not the statement that the English chemist John brought back Democritus' ancient idea of the atom around 1800 is accurate.