Homework Help: chemistry

Posted by chris on Thursday, April 14, 2011 at 6:02pm.

Decide if each of the following principles were first discovered during Thompson's cathode ray tube experiments, Rutherford's gold foil experiment, Millikan's oil drop experiment or none of these. Label each one with either Thompson, Rutherford, Milikan, or none of these people.

1)An atom has a nucleus that is very small

2)In a reaction, the mass of the products must equal the mass of the reactants.

3)Electrons are negatively charge pieces of matter.

4)An electron has a mass that is very small compared to the size of the atom.

5)The charge to mass ratio of an electron

6)Any sample of a chemical compound will contain the same elements in the same proportions.

7)Neutrons are a particle with no charge.

8)The magnitude of an electron's charge

chemistry - DrBob222, Thursday, April 14, 2011 at 6:12pm
We would be happy if you shared your thoughts with us and tell us why you answered as you did.
chemistry - chris, Thursday, April 14, 2011 at 6:25pm
i am just simply stuck on this question
chemistry - DrBob222, Thursday, April 14, 2011 at 6:34pm
I suggest you look in your text and notes under the three men. Most text discuss the findings and something about how the findings came about. Most texts then have something like a summary at the end of the discussion. Those point plus what you have read about each person will fit one of the statements in the question. If this question leaves you "stuck" that means you just haven't digested the material and you need to go over it again Iand a third time if necessary).

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