Most science knowledge did not come by a single person. The first "atomic theorists" have a part in history. In the related links box below, I posted a good site to read.
No. Substances are made of atoms. Some atoms combine with other atoms to form compounds.
Molecules are substances consisting two or more atoms.
All substances are mainly made of atoms, which are composed of protons, neutrons, and electrons. These atoms combine to form molecules, which then come together to create different types of substances based on their chemical composition and bonding arrangements.
democritus
bohr
All substances on earth are made up of atoms.
In my textbook it sayes that actually Dalton believed that all substances are made of atoms, and this was part of his atomic theory, which he published in 1803.
they all are made of atoms
An element.
Atoms
Atoms
Substances are made of atoms, which are the basic building blocks of matter. Atoms are composed of a nucleus containing protons and neutrons, surrounded by electrons that orbit the nucleus. Each element is made up of a specific type of atom, determined by the number of protons in its nucleus.