Question

need to finish today please help

Answer 1

hi dear here is the answer

Bohr modified Rutherford's modelwhere he explained that electronsmove around in fixed orbital shells. Furthermore, he explained that each orbital shell has fixed energy levels. ... According to Bohr Atomic model, a small positively charged nucleus issurrounded by revolving negatively charged electrons in fixed orbits.

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Answer 2

I think the answer is a