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Alpha particles contain two protons and two neutrons. As such, they have a charge of +2 (from the protons). The nucleus, containing varying numbers of protons and neutrons, also has a plus charge, so the electromagnetic force causes like charges to repel. This remains true until you apply sufficient force (pressure) to bring the protons close enough for the strong atomic force to take over and initiate fusion.
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Alpha particles are repelled by atomic nuclei because?
Alpha particles are repelled by atomic nuclei because alpha particles have a positive charge, and so do atomic nuclei. The positive charge on the surface of a nucleus will repel another positive charge, like an alpha particle, because of the law of electrostatics. That's the simple answer. And it is correct. But know this: Alpha particles were used in the early investigations of atomic structure and atomic interactions. The alpha particles were used to bombard atomic nuclei, and there are times when an alpha particle will be absorbed by an atomic nucleus. Somehow the laws of electrostatics took the day off, and the fact that absorption took place opens the door to discovery and discussion of other atomic forces. Word up.
Alpha particles ejected from the nucleus travel at the speed of light?
Alpha particles are emitted from the nucleus at high speeds, typically around 5-10% of the speed of light. They move with such energy due to the strong repulsive force between the positively charged alpha particle and the remaining nucleus.
Does alpha particles have less mass the beta particles?
An alpha particle is two protons and two neutrons (same as a Helium nucleus) so when a nucleus ejects an alpha it will defintely have less mass. Also it will be a new element because it has two less protons.
What is the explanation for the scattering experiment of Rutherford?
Rutherford conducted an experiment in which Alpha particles were fired at a gold nucleus. Most of the particles passed through unaffected. However, some were deflected by a small amount whilst an even smaller number of the particles were deflected completely. This led to the conclusion that the atom has an extremely small, central, positively charged nucleus. As both the positive alpha particle and the positive nucleus repel each other by electrostatic forces. The fact that only a small amount of particles are deflected shows that the nucleus is only a tiny central part of the atom.
Why alfa particles do not get attracted by the electrons present in the atom when gold foil is bambarded by positively charged helium ions?
Alpha particles are essentially helium nuclei, consisting of two protons and two neutrons, so they carry a double positive charge. The positive charge of the alpha particle and the positive charge of the nucleus repel each other, preventing the alpha particle from being attracted to the electrons surrounding the gold nucleus. This repulsion is what allows the alpha particles to pass through the gold foil without being significantly deflected.
Why did the path of only some alpha particles deviate?
nucleus of the atom has positive charge.alpha particles are also positively charged.like charges repel each other.so alpha particles passing near the nucleus are repelled and deviated from the normal path
Why did Rutherford conclude that an atoms nucleus has a posotive charge instead of a negative charge?
when carrying out the alpha scattering experiment, he observed that some alpha particles got deflected from their course. as alpha particles are helium nuclei, they are positively charged. the fact that they deviate made him think that there might be some repulsion between the particles and the nucleus. as positive charges repel each other, he determined the nucleus to be positively charged.
What happens to a positively-charged alpha particles that comes the positively-charged nucleus?
It will repel
Alpha particles are repelled by atomic nuclei because?
Alpha particles are repelled by atomic nuclei because alpha particles have a positive charge, and so do atomic nuclei. The positive charge on the surface of a nucleus will repel another positive charge, like an alpha particle, because of the law of electrostatics. That's the simple answer. And it is correct. But know this: Alpha particles were used in the early investigations of atomic structure and atomic interactions. The alpha particles were used to bombard atomic nuclei, and there are times when an alpha particle will be absorbed by an atomic nucleus. Somehow the laws of electrostatics took the day off, and the fact that absorption took place opens the door to discovery and discussion of other atomic forces. Word up.
Are alpha particle negative or positive?
An alpha particle is a helium nucleus; it has a charge of +2.
Type of nuclear decay consisting of a helium nucleus?
Alpha decay. Alpha particles are the same as a helium-4 nucleus.
What do you think are the chances of alpha particle directly hitting the nucleus?
What do you think are the change of the alpha particles directly hitting the nucleus
Which particles is similar to a He nucleus?
The so-called alpha particles ARE helium nuclei.
What factors will affect the extent of scattering of the alpha particles?
The factors that will affect the extent of scattering of alpha particles include the charge and mass of the nucleus they interact with, the impact parameter (closest approach distance), and the energy of the alpha particles. Additionally, the angle of deflection will be influenced by the velocity and direction of the alpha particles as they approach the nucleus.
What happen to a positively-charged alpha particle that comes near the positively-charged nucleus?
It will repel
What happens to the positively charged alpha particle that comes near the positively charged nucleus?
It will repel
What happens to a positively charged alpha particle that comes near the positively-charged nucleus?
It will repel
