List any two types of mixtures that are not covered in the Exploration. Also mention the state in which the constituents of these mixtures are.

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.

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