December 21, 2014

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

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