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3 years ago

What did Ernest Rutherford expect to happen when he aimed a beam of particles at a thin gold foil?

Physics

2 answers:

Yuliya22 [10]3 years ago

8 0

<span>The particles would be deflected slightly after passing through the foil</span>

SVEN [57.7K]3 years ago

6 0

When Ernest Rutherford aimed a beam of particles at a thin gold foil he expected that the particles would be deflected slightly after passing through the foil.

<h2>Further Explanation; </h2><h3>An atom </h3>

An atom is the smallest particle of an element that takes part in a chemical reaction.
It is made up of a nucleus and energy levels.
Atoms contain sub atomic particles; electrons found in the energy levels, neutrons and protons found in the nucleus of the atom.
Electrons are negatively charged, protons are positively charged while neutrons have no charge.
The positive charge of protons gives nucleus a positive charge which attracts the opposite charged electrons.

<h3>Rutherford Experiment </h3>

Rutherford carried out an experiment where he fired alpha particles at a piece of gold foil.
He found that about 1/800 of the alpha particles fired bounced back off of the gold foil.
He therefore, concluded that there was a part of the atom that was very dense, and that there was also lots of empty spaces.
According to Rutherford's model an atom contains a small, positively charged nucleus surrounded by electrons that travel in circular orbits around the nucleus similar to the structure of the Solar system.

<h3>Shortcoming of Rutherford's model</h3>

Rutherford's model of the atom failed to explain why electrons were not pulled into the atomic nucleus by the attraction of opposite charges of the nucleus and electrons.

Keywords: Atom, Rutherford experiment, gold foil, nucleus of an atom, setbacks of Rutherford's model

<h3>Learn more about: </h3>

An atom: brainly.com/question/3335747
Rutherford's model: brainly.com/question/3335747
Short coming of Rutherford's model: brainly.com/question/3335747
Difference between Rutherford's and Bohr's model: brainly.com/question/3335747

Level: High school

Subject: Chemistry

Topic: Structure of an atom and Atomic models

Sub-topic: Rutherford's and Bohr's model

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nataly862011 [7]

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Explanation:

<u>Velocity vs Time Graph</u>

It shows the behavior of the velocity as time increases. If the velocity increases, then the acceleration is positive, if the velocity decreases, the acceleration is negative, and if the velocity is constant, then the acceleration is zero.

The graph shows a horizontal line between points A and B. It means the velocity didn't change in that interval. Thus the acceleration in that zone is zero.

A. To calculate the acceleration, we use the formula:

$\displaystyle a=\frac{v_2-v_1}{t_2-t_1}$

Let's pick the extremes of the region AB: (0,8) and (12,8). The acceleration is:

$\displaystyle a=\frac{8-8}{12-0}=0$

This confirms the previous conclusion.

B. The distance covered by the body can be calculated as the area behind the graph. Since the velocity behaves differently after t=12 s, we'll split the total area into a rectangle and a triangle.

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3 years ago

A simple lie detector consists of an electric circuit, often from one finger to another. A sensitive meter shows the current tha

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3 years ago