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Atoms are a unit of matter, the smallest unit of a element. Its consisted of a positively charged nucleus surrounded by a system of electrons.
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Today Dalton is known for his atomic theory. John Dalton did experiments with various chemicals that showed that matter seems to consists lumpy particles ( atoms). All matter is made up of tiny particles called atoms.
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Thomson had discovered that atoms are composite objects that are made up of pieces with positive and negative charge. His model looked like raisins stuck on the surface of a lump of pudding. The atom is composed of electrons through G.J
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1911 the components of the atom had been discovered. The atom consisted of particles called protons and electrons. The model described the atom as a tiny positively charged core also known as the nucleus.
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Niels Bohr proposed the Bohr Model of the Atom in 1915. Has an atom consisting of a small,positive charged nucleus orbited by negative charged electrons. The model of the atom is based on quantum mechanics.
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Erwin Schrodinger proposed the quantum mechanical model of the atom, which treats electrons as matter waves. Schrodinger used mathematical equations to describe the likelihood of finding an electron in a certain position. Dense nucleus surrounded by electrons at various levels.
