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What particles consists of two protons and two neutrons?
A alpha particle that consists of two protons and two neutrons. Beta particles have a high-energy electron that comes from the nucleus, not from the electron cloud.
Who said atoms were made up of subatomic particles?
Rutherford proved it it from his alpha-particle scattering experiment.
What is the name of the particle which makes up all other subatomic particles?
Quarks are the particles that make up protons and neutrons. There are no particles, as far as we know, that make up electrons.
Which type of nuclear substance is a helium nucleus?
The alpha particle has a composition identical to a helium nucleus, specifically, the nucleus of helium-4. The alpha particle, however, is a product of radioactive decay, and is usually moving pretty fast. When we speak of helium nuclei, we are usually speaking of things that are much less energetic.
What is lost from the nucleus of atom when it emits an alpha particle?
2 neutrons and 2 protons (this is what an alpha particle is made up of).
Which naturally occurring radioactive particle is the largest?
Alpha particles are the same size as a helium nucleus and are made up of 2 protons and two neutrons. They have no electrons so an alpha particle has a +2 charge
What particles consists of two protons and two neutrons?
A alpha particle that consists of two protons and two neutrons. Beta particles have a high-energy electron that comes from the nucleus, not from the electron cloud.
What is a beta particle made up of?
A beta particle is an electron. Alpha particles consist of two neutrons and two protons, and gamma particles consist of photons.
Who said atoms were made up of subatomic particles?
Rutherford proved it it from his alpha-particle scattering experiment.
What is a radioactive particle that is made up of two neutrons and two protons?
Used by Rutherford in his experiment made of two protons and two neutrons are alpha particles. Rutherford discovered the nucleus using his gold foil experiment.
What is the name of the particle which makes up all other subatomic particles?
Quarks are the particles that make up protons and neutrons. There are no particles, as far as we know, that make up electrons.
Which type of nuclear substance is a helium nucleus?
The alpha particle has a composition identical to a helium nucleus, specifically, the nucleus of helium-4. The alpha particle, however, is a product of radioactive decay, and is usually moving pretty fast. When we speak of helium nuclei, we are usually speaking of things that are much less energetic.
How fast do alpha particles travel?
That depends on what energy the interaction particle was at. For example if say you had a gamma at 14MeV and you got an alpha of 2MeV, now you up the energy of the gamma to 15MeV for the same reaction the alpha would have a kinetic energy (velocity) of about 3MeV. -Regards
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.
What is lost from the nucleus of atom when it emits an alpha particle?
2 neutrons and 2 protons (this is what an alpha particle is made up of).
After an alpha particle leaves the nucleus will it speed up?
The alpha particle emitted in alpha decay will leave the nucleus of the atom with considerable kinetic energy. But it will begin slowing down immediately unless it's in a vacuum. This will be due to scattering events with any atoms or molecules it encounters along its path of travel. It will not experience an increase in velocity, so no, it won't speed up. A link to a related question can be found below.
Which subatomic particle is present in the nucleus of an atom?
The atomic particles that make up an alpha are two protons and two neutrons. The subatomic particles are contained within the neutrons & protons and there are too many to list here, plus I don't know all of them.
