<span>Electron cloud model was the great contribution of 20th centuary
</span><span>In the electron cloud model, the electron cloud is denser in some locations than in others the denser areas represent that the
</span><span>regions where the probability of finding an electron is high
</span>means there is more chance of finding or presence of an electron
so correct option is A
hope it helps
Ok. I finally understood that you need to complete (fill in the blank) the last sentence: The weight of a space probe on the surface of Mars is about ______________
The answer is one third its weight on the surface of Earth.
You can find that by using the formula for the weight:
weight = mass * acceleration due to gravity
So, given that the mass is constant and the acceleration due to gravity is one third, the weight is also one third.
Answer:
Explanation:
to show how precise your measurements were.
Forming a hypothesis
Explanation:
The step in an investigation which involves the prediction of results is the stage of forming of a hypothesis.
- A hypothesis is a stage in scientific investigation that follows shortly after asking a simple scientific question.
- Hypothesis is simply a scientific guess that is logical in nature.
- It presents a problem in a manner in which the problem is stated, the cause and the likely outcome can be predicted.
- After a hypothesis formulation, the experiment is conducted and results of findings weighed against the predictions of the statement.
learn more:
Hypothesis brainly.com/question/3418951
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Answer:
Atomic radii vary in a predictable way across the periodic table. As can be seen in the figures below, the atomic radius increases from top to bottom in a group, and decreases from left to right across a period. Thus, helium is the smallest element, and francium is the largest.
Explanation: