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Top potassium nitrate Secrets

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An early product with the atom was developed in 1913 from the Danish scientist Niels Bohr (1885–1962). The Bohr model shows the atom as a central nucleus that contains protons and neutrons, With all the electrons in round electron shells at certain distances within the nucleus, much like planets orbiting https://ernestm654zoc0.blogmazing.com/profile

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