Question

identifying the basis for bohrs atomic theory
niels bohrs theory was based on
○ evidence from a beam of particles that scattered after hitting thin gold foil
○ evidence that an atom will actually emit colors when heated
○ the experimental results of other scientists
○ the effect of holding a magnet next to a beam of electrons.

Explanation:

Bohr's atomic theory was based on the fact that atoms emit discrete - colored light (spectral lines) when heated. This is related to the quantization of energy levels in atoms. The first option refers to Rutherford's gold - foil experiment, the third is too general, and the fourth is related to the deflection of electrons in a magnetic field, not the basis of Bohr's theory.

Answer:

Evidence that an atom will actually emit colors when heated.