Choose a scientist from (Democritus, John Dalton, JJ Thomson, Ernest Rutherford, Niels Bohr, Erwin Schrodinger or James Chadwick) . Conduct research using outside sources. Be sure to choose reliable resources such as government, scientific, and educational websites. Document all research in your own words. Be sure to properly cite all sources used in your assignment.
Research and respond to the following:

What were experiences in his life that led to his interest in science and the study of the atom? (3-5 sentences paraphrased)

Defend his work on the atom and its contribution to the modern atomic model. (3-5 sentences paraphrased)

Point out which contributions are present in the modern atomic model and which were eventually disproven and thus are not part of the modern model. (3-5 sentences paraphrased)

Works Cited: List all of the websites used to find the information. You should have at least 2.

What were experiences in his life that led to his interest in science and the study of the atom? (3-5 sentences paraphrased)

= James Chadwick was a physicist who was awarded a Nobel Prize in physics for his discovery of the neutron.

Defend his work on the atom and its contribution to the modern atomic model. (3-5 sentences paraphrased)

= Neutrons are located in the middle of an atom, in the nucleus along with protons.

Point out which contributions are present in the modern atomic model and which were eventually disproven and thus are not part of the modern model. (3-5 sentences paraphrased)

= The Protons, and the electrons are the outer layer of the atom and the neutron, and the nucleus are in the center of the atom.

Works Cited: List all of the websites used to find the information.  You should have at least 2.

= nobleprize.org, and google

Explanation:

measuring things 1 litre of water

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.