Answer:
One must start with a hypothesis. In this case it is that plant growth is affected by fertilizer.
Explanation:
The dependent variable is plant growth. It is important that the plant are all the same, and there needs to be enough of them to achieve statistical significance. Before hand, You estimate the variability in plant growth and decide what level of significance you want to achieve. For example, you want to draw conclusions with 95% confidence. The independent variable is the fertilizer used ott (over the top) withheld. There needs to be a control group without fertilizer treated exactly as the group with fertilizer.
Why do you think that the neutron was the last of the atom components to be discovered?
Answer:he neutron was the last of the atomic components to be discovered for several reasons:
Complexity of the atom: At the time of the discovery of the electron and proton, the atom was thought to be the simplest form of matter and the basic building block of all elements. The discovery of the neutron came much later as scientists were still exploring the complexity of the atom.
Lack of technological advancements: The technology to detect neutrons did not exist until the early 20th century, which made it difficult to study the subatomic particles and discover the neutron.
Difficulty in detecting neutrons: Neutrons are neutral particles and do not carry an electric charge, which makes them difficult to detect. The discovery of the neutron required the development of new technologies and techniques to measure its properties and detect its presence in the atom.
Theoretical Predictions: The neutron was predicted theoretically in the 1920s based on mathematical models, but it was not until the 1930s that the neutron was actually discovered experimentally through neutron scattering experiments.
These factors all contributed to the delay in the discovery of the neutron compared to the other atomic components.
Explanation:
he neutron was the last of the atomic components to be discovered for several reasons:
Complexity of the atom: At the time of the discovery of the electron and proton, the atom was thought to be the simplest form of matter and the basic building block of all elements. The discovery of the neutron came much later as scientists were still exploring the complexity of the atom.
Lack of technological advancements: The technology to detect neutrons did not exist until the early 20th century, which made it difficult to study the subatomic particles and discover the neutron.
Difficulty in detecting neutrons: Neutrons are neutral particles and do not carry an electric charge, which makes them difficult to detect. The discovery of the neutron required the development of new technologies and techniques to measure its properties and detect its presence in the atom.
Theoretical Predictions: The neutron was predicted theoretically in the 1920s based on mathematical models, but it was not until the 1930s that the neutron was actually discovered experimentally through neutron scattering experiments.
These factors all contributed to the delay in the discovery of the neutron compared to the other atomic components.
Answer:
Explanation:
The neutron is harder to detect, because of its lack of electric charge. Neutron are charge-less particles. They are not affected by electromagnetic fields and thus are hard to identify. Protons have postive charge and electrons have negative charge and atoms are having neutral charge, so the scientist thought that the positive and negative charges could cancel each other out thus making an atom neutral. But further discoveries later proved that neutrons are also present.
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