0
When a Uranium 238 emits an alpha particle the nucleus left behind has how many protons?
Wiki User
∙ 14y ago
90 protons left
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
How do alpha particles beta particles and gamma rays originate in the nucleus of the atom?
A beta particle is created when a neutron inside an unstable nucleus changes into a proton (or vice versa), losing energy and mass in the form of an electron (or positron), which is the beta particle.
What represents alpha decay?
148/64 Gd ---> 144/62 Sm + 4/2 He (apple executive)
What is the scientific principle behind particle accelators?
particle accelerators work by accelerating a charged particle in a magnetic field where the lines of magnetic flux are such that the particle is accelerated into a circular path. This is so that the force produced by such a motion and magnetic field is perpendicular to both the lines of magnetic flux and the velocity of the particle. The stronger the magnetic field and the faster the particle is moving, the more of a force is required (i.e stronger magnetic field) to keep the particle accelerating. Only a charged particle is affected by a magnetic field so only charged particles can be used inside a particle accelerators (i.e protons and electrons.) neutrons have a charge of zero and are not affected by magnetic fields.
What is the role of a neutron in nucleus?
I assume you know that like charges repel each other. The protons (+ charge) of the atomic nucleus would fly apart without the extra mass of the neutrons to help hold it together. (It's more than just mass, the strong force is involved too.) Only hydrogen lacks a neutron, as a single proton holds together quite nicely.
Can glass stop gamma rays?
NO. Gamma radiation is not easily blocked as it can pass between the electron shell and the nucleus of an atom as if those were not there at all. The only way to block gamma radiation is to have enough atoms one behind the other that have enough nucleus to block the path. Dense materials are more effective.
What is the negatively charged particle in in atom?
Electron. It revolves the nucleus containing protons and neutrons and is the basic reason behind chemical reactions.According to the simplest Bohr model of the atom, the basic negatively charged particle is the electron.Electrons
What is the negative charge particle in an atom?
Electron(s).
What is the negatively charged particles in the atom?
Electron. It revolves the nucleus containing protons and neutrons and is the basic reason behind chemical reactions.According to the simplest Bohr model of the atom, the basic negatively charged particle is the electron.Electrons
Does a nucleon has the least mass in the nucleus of uranium?
Nucleons are protons and neutrons; the have a mass near 1. But nucleons contain quarks and gluons. I've been trying to work backward from the question to determine what you were really trying to ask, and I think it may have been something along the lines of "does uranium have the greatest mass deficit per nucleon"? In which case the answer is no. An isotope of nickel holds that position, with two iron isotopes close behind. Uranium is not even a contender; there actually aren't many elements that don't have at least one isotope that has a higher binding energy than any uranium isotope.
How do alpha particles beta particles and gamma rays originate in the nucleus of the atom?
A beta particle is created when a neutron inside an unstable nucleus changes into a proton (or vice versa), losing energy and mass in the form of an electron (or positron), which is the beta particle.
What is Rutherfords model of the atom?
the nuclear model was its name. the theory behind this model is that 99.99% of the atom is empty space.the nucleus is what that is tiny and the most dense positive core.The nucleus contains protons. the nucleus is what weight the most in the atom
What is the key reason behind radioactive decay?
E = mC squared The mass energy equation (Einstein' derivation) applied to sub atomic particles which shed protons to attain a more stable electrovalence leads to the energy associated with that bond being released Alpha particles ,beta particles or gamma particles Americium-241--->neptunium -237 + Alpha particle (Helium Nucleus)
Why are neutrons the glue that holds the nucleus together?
It would be better to say that neutrons do participate in the binding force that holds nuclei together, but do not alone act as the glue. Both protons and neutrons are attracted and bound in nuclei by the nuclear force. The strong force itself, a fundamental force in physics behind this short-distance attraction between nucleons, is actually mediated by another particle - the gluon.
What represents alpha decay?
148/64 Gd ---> 144/62 Sm + 4/2 He (apple executive)
The nucleus or atom left behind when a nucleus disintegrates or splits is?
Sometimes radioactive
What is the scientific principle behind particle accelators?
particle accelerators work by accelerating a charged particle in a magnetic field where the lines of magnetic flux are such that the particle is accelerated into a circular path. This is so that the force produced by such a motion and magnetic field is perpendicular to both the lines of magnetic flux and the velocity of the particle. The stronger the magnetic field and the faster the particle is moving, the more of a force is required (i.e stronger magnetic field) to keep the particle accelerating. Only a charged particle is affected by a magnetic field so only charged particles can be used inside a particle accelerators (i.e protons and electrons.) neutrons have a charge of zero and are not affected by magnetic fields.
What is the physicist's response to the creationist claim that polonium 218 in granite is evidence of creation?
This is how Polonium 218 gets here: It is constantly being formed. The Universe is Billions of years old. If there is a God then he is much greater than "Creationists" could ever imagine.Start with a uranium-238 atom. This atom has 92 protons and 146 neutrons. It has a half-life of 4.5 billion years. When it decays it emits an alpha particle, leaving behind a thorium-234 atom.A thorium-234 atom has 90 protons and 144 neutrons. It has a half-life of 24.5 days. When it decays it emits a beta particle and a gamma ray, leaving behind a protactinium-234 atom.A protactinium-234 atom has 91 protons and 143 neutrons. It has a half-life of 269,000 years. When it decays it emits a beta particle and a gamma ray, leaving behind a thorium-230 atom.A thorium-230 atom has 90 protons and 140 neutrons. It has a half-life of 83,000 years. When it decays it emits an alpha particle and a gamma ray, leaving behind a radium-226 atom.A radium-226 atom has 88 protons and 138 neutrons. It has a half-life of 1,590 years. When it decays it emits an alpha particle and a gamma ray, leaving behind a radon-222 atomradon-222, with a half-life of 3.825 days, emits an alpha particle to become polonium-218.polonium-218, with a half-life of 3.05 minutes, emits an alpha particle to become lead-214.lead-214, with a half-life of 26.8 minutes, emits a beta particle and a gamma ray to become bismuth-214.bismuth-214, with a half-life of 19.7 minutes, emits either an alpha particle or a beta particle and a gamma ray to become either thallium-210 or polonium-214.polonium-214, with a half-life of a 150 microseconds, emits an alpha particle to become thallium-210.thallium-210, with a half-life of 1.32 minutes, emits a beta particle to become lead-210.lead-210, with a half-life of 22 years, emits a beta particle and a gamma ray to become bismuth-210.bismuth-210, with a half-life of five days, emits a beta particle to become polonium-210.polonium-210, with a half-life of 138 days, emits an alpha particle and a gamma ray to become lead-206.lead-206 is a stable isotope of lead.Answer: The experiment performed by the creationist Robert Gentry about the existence of polonium halos found in granite yielded inconclusive results. Robert Gentry does not have any evidence that the halos are indeed a result of polonium isotopes decaying.
