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They created experiments with the idea of matter. They believed that all metals were formed from mercury and sulfur. -
He thought that atoms were tiny, empty space that muted at random. He introduced the idea of atoms as building blocks of matter. -
He theorized that solid forms of matter are composed of elements shaped like triangles. -
He showed that matter is made of tiny particles he named corpuscles known now as atoms. -
He helped define laws of conservation mass which helped to shape the atmoic theory. He defined that matter was made of atoms that weren't created or destroyed during chemical reactions. -
His theory stated that all matter is made of atoms that are invisible. He claimed that all elements had its own type of atom. -
He created multiple models. These included the electron cloud model, billiard ball model, solar system model, and plum pudding model. -
He hypothesized that radioactive particles cause atoms to break down and release radiation. -
He proposed that all matter is made up of tiny particles that are much smaller than atoms. -
He mathematically proved existence of atoms. Einstein realized that molecules would make statistical functions. -
He successfully determined the magnitude of an electrons charge. He proved this by doing multiple experiments with oil and metal plates. -
He discovered the atom is mostly empty space surrounding a massive nucleus. He predicted the existence of the neutron. -
He experimentally demonstrated that major properties of an element are determined by the atomic number, not by the atomic weight. -
He proposed a theory for hydrogen atoms. He said that electrons move around the nucleus but only in prescribed orbits. -
Discovered that all matter is composed of different particles known as atoms. He also discovered the neutron. -
He devised the periodic table of elements. He found that, when all the chemical elements were arranged in order of increasing atomic weight.