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When Rutherford put the gold foil in front of the alpha-particle emitting source, he noticed a few things:
1. Some of the alpha particles passed through the gold foil
2. Some the particles were deflected
3. Some of the particles bounced back
Rutherford concluded that an atom is made up of mostly empty space and the actual size of the atom is far smaller than the space it occupies.
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∙ 14y ago
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∙ 12y agoIt proved there was a nucleus in the atoms, but did not know exactly what. Chadwick discovered the neutron and Goldstein discovered the proton.
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∙ 13y agothe existence of a dense, positively charged center in an atom
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∙ 12y agoThat the mass of an atom is mostly located in a small nucleus.
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∙ 7y agoThat the atom contained a small "hard" strongly positively charged nucleus at its center with the electrons outside that nucleus.
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What is the use of a control group in an experiment?
A control group is must for every new experiment or uncommon experiment. Because when an experiment is being done anything unexpected could happen and to control the hazard a control group should be ready everytime. Otherwise it can be very dangerous for the experiment holders. to help you conclude that no uncontrolled factors significantly influenced your results
What is the difference between a controlled experiment and observation?
all it is is the uncontrolled experiment is a little bit different
Scientists make blank to help them make a hypothesis or collect data during an experiment?
Scientists make observations to help them make a hypothesis or collect data during an experiment.
Why are tables used in a controlled experiment?
to help record your informantion
In an experiment a model can help a scientist do what?
Figure out what measurements to make.
What did Rutherfords gold foil experiment help him conclude?
That the mass of an atom is mostly located in a small nucleus.
How did Rutherfords work help form the presentday model of the atom?
His experiment with the gold foil and the beam of positively charged particles proved that the nucleus of the atom is not solid. The beam past through the foil and bounced back. Rutherford's experiment contradicted Thomson's theory that an atom is solid.
What is the use of a control group in an experiment?
A control group is must for every new experiment or uncommon experiment. Because when an experiment is being done anything unexpected could happen and to control the hazard a control group should be ready everytime. Otherwise it can be very dangerous for the experiment holders. to help you conclude that no uncontrolled factors significantly influenced your results
What is the purpose of using multiple control in an experiment?
To help you conclude that no uncontrolled factors significantly influenced your results. To help you determine that your experimental results are valid To help control for factors that aren't being tested but might affect results
How did Rutherfords work help form the present day model of a atom?
The atomic model of Rutherford was a step in the historical development of the today concept of an atom.
What is formulating?
step in scientific method of experiment in sciencecan help a scientist on his experiment.
What clues help you conclude that the fish are not afraid of swimmers?
They don't swim away.
What is the help word of sharks lagoon's game sensual experiment?
type help
Why are controls useful in a experiment?
to help record your informantion
What is the best explanation for hy a second control group was included in the experiment?
to help researchers conclude that results are related to the new drug and not to the orange juice <APEX> ^_^
What is the difference between a controlled experiment and observation?
all it is is the uncontrolled experiment is a little bit different
Scientists make blank to help them make a hypothesis or collect data during an experiment?
Scientists make observations to help them make a hypothesis or collect data during an experiment.
