modern atomic theory
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Development of the Atomic Theory. In 1913, Neils Bohr, a student of Rutherford 's, developed a new modelof the atom. He proposed that electrons are arranged in concentric circular orbits around the nucleus. Thismodel is patterned on the solar system and is known as the planetary model.
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Modern atomic theory:-)
● one atom is no longer considerable individual which means it has three sub atomic particles - protons, electrons and neutrons
● atoms of same element may have different atomic mass which are known as isotopes .
● atoms of different elements may have same atomic masses which are known as isobars .
● atom is a smallest particle that take part in a chemical reaction .
● this atomic theory is given by Niles BOHR
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