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They said that all metals were formed from sulfur and mercury -
He was the first person to say that materials were made up of smaller things he called them atomos. -
He said that there was only four elements fire, Water, Air, and Earth. -
He helped make a definition for an element and helped the fall of the four elements. -
Came up with the Law of Conservation. He also said compounds are created from elements. -
The creator of this model is John Dalton. -
He said that all matter is made up of atoms. Which are invisible units. -
He said that the same amount of volume of gases at the same temperature and pressure have the same amount of molecules. -
He was the Father or creator of the periodic table of elements. -
He discovered that atoms were made up. of something smaller -
They discovered the existence of elements radium and polonium in their research. -
The creator of this model is JJ Thomas -
He proved that atoms were real. And he said that moleculess are always in constant movement -
He discovered that there is a positively charged nucleus in the atom. -
He found out that there was something in the center of an atom called a nucleus. -
He said that electrons move around the nucleus but only in specific orbits. -
The creator of this model is Niels Bohr -
He said that the atomic number is the same as the number of protons in an atom. -
He proposed the Uncertainly Principles. And he also created the Neutron Proton Model. -
The creator of this model is Erwin Schrodinger -
HE showed that the quantization of hydrogen atoms levels could be calculated from the Schrodinger equation. -
Found out that atoms did not only have protons and electrons but also neutrons.