The Bohr nuclear model suggests that: Electrons have a positive charge. Most of the atom is made of empty space. The nucleus is made of neutrons and electrons. The mass of an atom equals the number of protons.

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The Bohr Nuclear Model suggests that although there is a positively charged nucleus within the centre of the atom, and electrons in their valence shell, the space in between the 2 is quite large and as a result most of the atoms have large regions of empty space.

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