Question

features of modern atomic theory ​

Answer 1

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The modern atomic theory states that atoms of one element are the same, while atoms of different elements are different. ... Each element has its own characteristic atomic number. Atoms of the same element can have different numbers of neutrons, however.

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Answer 2

Modern Atomic Theory: Models. Bohr model. In 1913, Neils Bohr, a student of Rutherford 's, developed a new model of the atom. He proposed that electrons are arranged in concentric circular orbits around the nucleus. This model is patterned on the solar system and is known as the planetary model.