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What are positiely charged subatomic particles?
Of the hundreds of subatomic particles, many have an electric charge. The best-know particle with a positive charge is the proton. Subatomic particles are considered only protons, neutrons, electrons. The other particles form the large group of elementary particles (which includes also p, n and e).
How is the large amount of energy found in plasma generated?
The energy is produced by colliding charged particles.
How is the large amount of energy found in a plasma generated?
The energy is produced by colliding charged particles.
What are large positively charged subatomic particles called?
Strictly speaking, there is more than one kind of large, positively charged subatomic particle, but the one that matters the most is the proton.
Why did the path of only some alpha particles deviate in Rutherford experiment?
Alpha particles are positively charged helium nuclei. As such, they are repelled by other positively-charged nuclei. In Rutherford's experiment, he used gold foil. Since gold atoms have large, massive nuclei, the alpha particles were easily repelled by the large gold atom nuclei, and they were scattered in different directions.
Why is proton more effective than in electron in deflecting alpha particles?
Alpha particles, which are helium nuclei consisting of two protons and two neutrons, are large and positively charged. Electrons have almost no mass and are negatively charged. They would be attracted to alpha particles, not deflected. Protons are approximately 2000 times larger than electrons and are positively charged, therefore they would be much more effective in deflecting alpha particles. Remember that like charges repel.
What is Uptake of large particles?
Uptake of large particles
How did Rutherford infer that the nucleus was very small?
In conclusion... Rutherford's experiment involved a radioactive source emitting alpha particles (2 protons and 2 neutrons). The radioactive source was aimed at a thin sheet of gold. The main observation made was that a few alpha particles were repelled back the way they had come, and this was not expected. This was because the positively charged alpha particles (2 protons), by the laws of electrostatic repulsion, were repelled by the positively charged nucleus of the atoms in the gold. He then made the final conclusion of that the small nucleus of an atom is central, has a large mass and positive charge. So yes, the nucleus is small compared to the size of an atom, however it was mainly the fact that there is one concentration of positive charge (nucleus) in the atom that repelled the alpha particles that helped Rutherford to show the structure of an atom.
What are the application of colloids?
Applications of colloids are unlimited. Colloids find its applications in everyday life phenomena. Some of important applications of colloids are discussed.Purification of waterWater contains colloidal impurities .These impurities can be weeded out by using electrolyte like Alum. Alum is positively charged Al3+ ion which attracts negatively charged colloidal impurities. These neutralized particles settle down and pure water is decanted off. Thus Alum is used to remove dirt and impurities present in the colloidal solution. Food ItemsLarge numbers of food articles which we use in our daily life are colloidal in nature. For example, milk, butter and ice creams are colloidal in nature. MedicineMost of the medicines are colloidal in nature. Colloidal calcium and gold are administered by injections to raise the vitality of human system. Smoke Precipitation using Cottrell precipitatorColloidal particles of Smoke and dust are major source of pollution in big industrial cities. Smoke precipitation is technique of precipitating smoke particles present in air. Smoke particles are the electrically charged colloidal particle suspended in air. To remove these particles from air, Cottrell precipitator is used. Cottrell precipitator uses principle of electrophoreses (movement of colloidal particles under influence of electric field) to weed out smoke particles. Air containing smoke and dust particles are allowed to pass through metal electrodes present inside Cottrell precipitator. These charged particles moves towards oppositely charged electrodes and get deposited there from which they are scrapped mechanicalSewage disposalDirt and mud particles are electrically charged. By applying electric field in sewage tank, dirt particles reach the oppositely charged electrode, get neutralized and are coagulated. These coagulated particles are suspended in solution and are easily removed. Artificial rainColloids find another application in producing artificial rain. Cloud consists of charged particles of water dispersed in air. These particles are neutralized by spraying oppositely charged particles over a cloud. These neutralized particles of water combine to form large water drops. Thus, artificial rain is caused by the aggregation of minute particles of water to form large particles.
Can two positively charged body attract each other?
yes--consider two charged bodies (having positive charge). One body is very large in comparison to the other. The large body will induce opposite charge in the small body and thus both will attract each other
What are massive positively charged particles emitted by some radioactive elements?
Alpha Particles Named alpha because they were the first to be discovered, these particles are made up of 2 protons and 2 neutrons - the helium nucleus. Often, large atoms decay by releasing an alpha particle. These particles are relatively large and positively charged, and therefore do not penetrate through matter very well. A thin piece of paper can stop almost any alpha particle. However, the particles cause extreme damage of materials that they stop in by moving atoms as they slow down. Paper under continuous alpha irradiation would degrade. Beta Particles Beta particles are energetic electrons that are emitted from the nucleus of an atom. They are made when a neutron decays to a proton. Since neutrons are neutral particles and protons are positive, a negatively charged electron has to be emitted. Gamma Rays Gamma rays are photons that are emitted from the nucleus. Often an atom in an excited state will de-excite by emitting a gamma ray. Gamma rays are similar to light waves and x rays, except they are usually much higher frequency and consequently, more energetic. This radiation has no charge, and can penetrate most matter easily, requiring a lead brick for shielding.
What is made up of coarse large soil particles?
made up of course, large soil particles
