Question

Explain how different observations and experiments led to changes in the atomic model

Answer 1

The gold foil experiment.

"The Geiger–Marsden experiment (also called the Gold foil experiment or the Rutherford experiment) was an experiment to probe the structure of the atom performed by Hans Geiger and Ernest Marsden in 1909,[1] under the direction of Ernest Rutherford at the Physical Laboratories of the University of Manchester. The unexpected results of the experiment demonstrated for the first time the existence of the atomic nucleus, leading to the downfall of the plum pudding model of the atom, and the development of the Rutherford (or planetary) model." -Wikipedia

There were many other experiments performed that probed the structure of the atom, but the Gold Foil Experiment was one of the paramount experiments in defining the structure of the atom.

Answer 2

do you need examples or just a straight forward answer

Answer 3

@AllTheLonelyKillers straight forward pls;)

Answer 4

sorry my laptop died different observations and experiments are able to change the atomic model by allowing more information to be put into the making of it. When ever new information is found by experiments, observation, and tests the new findings allow for a a better understanding of the atom leading to an advancement in the atomic model.