What is Alpha particle scattering experiment class 11 and 12

Alpha particle scattering experiment class 11 and 12

In this experiment, a stream of particles from a radioactive source were directed onto a piece of gold foil that was extremely thin (less than 0.00004 cm thick). The alpha particles were predicted by Thomson's model to simply pass through the gold foil and be identified by a photographic plate positioned behind the foil. However, the experiment's real findings were extremely unexpected. According to observations:

I The majority of the -particles cut through the gold foil unimpeded.

(ii) A few of the -particles had minor angles of deflection.

(iii) A few particles experienced sharp deflections.

(iv) Approximately 1 in 12000 particles rebounded

In 1911, Rutherford provided an explanation of the -ray scattering experiment's findings and put out a different atomic model. According to Rutherford's theory, an atom has a compact, positively charged region at its core that is known as the nucleus. The nucleus is where an atom stores the majority of its mass as well as all of its positive charge. An atom's remaining space must be unoccupied and home to the smaller, negatively charged electrons.

The experimental results from the scattering experiment might be explained using the suggested model. The electron-region particles going through the atom would move straight through with no deflection. Only particles that are in close proximity to the positively charged nucleus have their paths diverted. There are very few -particles that would experience a rebound when they collide with the nucleus. Rutherford was able to forecast the nucleus' size using his model. According to his calculations, the radius of the atom's nucleus is at least 1000 times less than its radius.

Read more Class 11 Chemistry notes on the Rutherford Model Of Atom

Comments

Magnetic and non-magnetic material Class 6 Science

Magnetic and non-magnetic material Class 6 Science A magnet is a substance that is drawn to certain magnetic materials like iron, cobalt, and nickel. Magnets have the ability to draw iron to them. Natural magnets are rocks that naturally draw iron. Non-magnetic materials include things like wood, rubber, coins, feathers, leather, etc. that are not drawn to iron. Magnet characteristics It pulls magnetic materials, such as iron. The magnet's two ends are referred to as its poles. The magnet's diametrically opposed poles are drawn together. Heating, hammering, or dropping causes it to lose its characteristics. On the basis of properties types of Magnets Temporary magnets are those magnets that are magnetic for only a little duration. Typically, iron, cobalt, or nickel are used to make them. When they are close to the powerful magnet, they act like a magnet. When they are yanked away from the powerful magnet, they stop being magnetic. Permanent magnets are magnets that have magne...

What are Noble Gases? Example and noble gases name

What are Noble Gases? Example and noble gases name Noble Gases Noble gases, sometimes known as inert gases or erosions, are part of the modern periodic table's 18th group. This group is made up of the following individuals: Helium is a kind of gas (He) Neon (Ne) Argon is a gas (Ar) Krypton (Kr) Xenon is a kind of xenon gas (Xe) Radon is a gas that can cause cancer (Rn) Noble gases exist in a gaseous state under typical temperature and pressure conditions. Because all noble gases have stable electronic structures, they have very little chemical reactivity. They are monoatomic gases that do not readily form molecules. 'ns2np6' represents the basic electrical configuration of noble gases. As a result, noble gases' outermost valence shells can be deemed 'complete.' The chemical inertness of the group of 18 elements is due to this. Because of the stability of certain elements, these gases form a group. These stable elements' crusts are totally filled. Regardles...

CS Executive

At Takshila Learning we provide you Video Lecture of best faculties in India. We assure you not only the best quality of videos but also best content. Our teachers way of teaching, presentation and explanation is very simple and unique. Why Takshila Learning? We can give you 10 top reasons why you should take CS Executive Online Video Coaching Classes Lectures from Takshila Learnings. We are providing online classes of CS Executive for last 5 years (almost oldest in the market ) We pick best teachers for every subjects. We don’t provide updates only with old videos. Infact we provide new updated classes for every attempt Our teachers update notes for every attempt. Videos and notes are highly exams oriented . Our teachers cover last 5 attempts question papers along with ICSI Course content. Our video classes includes live practical examples to help you understand easily. Our structure of our fee ...

Takshila Learning - Online Tutorials

Search This Blog