What experimental evidence led to the development of this atomic model from the one before it? A few of the positive particles aimed at a gold foil seemed to bounce back. The colors of light emitted from heated atoms had very specific energies. Equations were used to identify regions around the nucleus where electrons would likely be. Cathode rays were bent in the same way whenever a magnet was brought near them.

Few positive particles aimed at a gold foil seemed to bounce back is the evidence that is responsible for the development of atomic model. Rutherford performed an experiment in which alpha particles are allowed to fire on the gold foil.

Some of the particles bounced back which tell us that there are heavy particles present in the center of an atom.

Most alpha particles pass through the atom which tell us that there is a lot of empty space in an atom.

There is also a slight deflection that occur due to similar charge that tells us the element which is present in the nucleus has positive charge.

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explanation:

the answer is d. chordata