Everyone thought that the alpha particles would go through the gold- foil with little deflection. When the alpha particle passed straight through the gold atoms with no deflection or bounced straight back a small fraction bounced off at a large angle, or bounced straight back to the source. Rutherford came up with a new theory of the atom, that the atom is mostly empty space and in the center there is a nucleus. this is known as the nucleus atom.
Pasteur's experiment refuted the theory of spontaneous generation by demonstrating that microorganisms in broth were killed by heat and could only enter through the air. Spallanzani's experiment involved boiling broth in sealed flasks to prevent microorganism entry, concluding that the lack of spontaneous generation was due to the lack of vital force rather than the absence of air.
If copper metal was used instead of gold foil in the Rutherford experiment, the alpha particles would not be scattered as much because copper is not as dense as gold. This would lead to less deflection of the alpha particles, making it difficult to observe the small angle scattering that led to the discovery of the atomic nucleus.
The only thing that should differ between experimental treatments is the variable being tested or manipulated. All other factors should be kept constant to ensure that any observed differences in outcomes can be attributed solely to the variable being studied.
Boron-10 and Boron-11 differ in their number of neutrons. Boron-10 has 5 neutrons, while Boron-11 has 6 neutrons. This mass difference results in different properties and applications for each isotope.
Isotopes of an element have the same number of protons but different numbers of neutrons. This results in variations in atomic mass for isotopes. The element atoms on the periodic table represent the average mass of all its naturally occurring isotopes.
Because it helps them know the results of the objects in the experiment and how they differ. This way the scientist knows which succeeded and which failed.
Accuracy is how close together your results are each time you repeat an experiment, so keeping the variables as constant as you can ensures your results differ as little as possible.
variable
Rutherford expected that the alpha particles would pass through the gold foil with only minor deflections. However, some alpha particles were deflected at large angles, and a few even bounced back. This result led Rutherford to propose the existence of a small, positively charged nucleus at the center of the atom.
Results from the Strange Situation experiment can vary between countries due to cultural differences in parenting practices and attachment styles. For example, countries that prioritize independence may have children who exhibit more avoidant attachment behaviors, while countries that emphasize interdependence may have children who exhibit more secure attachment behaviors. Additionally, factors such as socioeconomic status and family dynamics can also influence the results of the experiment.
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Lawlessness increased rather than decreased.
A conclusion is what the experimenter observes from the experiment andwhether your hypothesis was proven correct or not.While the theory is the facts that is known about the experiment
The initial observation sets the scene for an experiment...what did you see? what was happening? How to improve it? And so on. As the experiment proceeds you record all observations..what do you see?...what is happening? Etc. At the end you note the final observations and how do they differ from the initial observations. So, Initial observation is the observations you made initially of an experiment.
He can do anything
you have a different variable