Watch this video to understand the development of the atomic model and the discoveries made by experts. The scientist John Dalton carried out a series of experiments. He concluded that all matter was ...

Niels Bohr adapted Ernest Rutherford's nuclear model. Bohr did calculations that led him to suggest that electrons orbit the nucleus in shells. The shells are at certain distances from the nucleus.

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On Monday, 8 June, Director General, Rafael Mariano Grossi, briefed the Board of Governors on the IAEA’s efforts to support nuclear safety, security and safeguards in conflict-affected regions while ...