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When radium-226 (atomic number 88) decays by emitting an alpha particle it becomes .?
?
When thorium decays by emmitting an alpha particle what is the atomic number of the resulting nucleus?
88Ra, Radium
What kind of radiation is emitted when polonium decays to astatine?
Polonium, which has an atomic number of 84, decays to astatine, which has an atomic number of 85, a negative beta particle is emitted.
Is radium identical to an alpha particle?
No. Radium is a heavy metal, atomic number 88 (with 88 protons). An alpha particle is a helium nucleus, atomic number 2. Radium decays by each atom emitting an alpha particle, becoming Radon gas, atomic nubmer 86.
How is the mass number of an element affected when it decays by ejecting an alpha partical?
The mass number of an element decreases by 4 when it decays by ejecting an alpha particle. This is because an alpha particle has a mass number of 4 and atomic number of 2. The atomic number of the element also decreases by 2.
When radium-226 decays to form radon-222 the radium nucleus emits a?
When Radium-226 decays to form Radon-222, the Radium nucleus emits an alpha particle. The atomic number goes down by 2, and the mass number goes down by 4, matching the atomic number and mass number of the alpha particle.
What particle is emitted when Pu-240 decays to U-236?
240Pu decays to 236U by emitting an alpha particle. You can tell this by looking at the difference in atomic mass. 240 minus 236 is 4, and that is the mass of an alpha particle. You can also tell this by looking at a chart of the nuclides. See the related link below for an example from Brookhaven National Laboratories.
What happens when U-235 emits a beta particle?
beta decay results from the transformation of a neutron in the nucleus to a proton (+ charge) and an electron (beta particle). The proton remains in the nucleus increasing the atomic number by one (mass number remains the same) while the electron is emitted as a beta particle. So, U-235 of atomic number 92 changes to Neptunium with atomic number 93. However, to my knowledge, U-235 decays by gamma not beta. U-236 decays by beta to Neptunium-236.
What particle does argon 39 atomic number 18 emit when it decays to potassium 39 atomic number 19?
Argon-39 undergoes beta decay to become potassium-39, emitting an electron (beta particle) in the process. The atomic number increases by one due to the conversion of a neutron into a proton during beta decay.
What particle is emitted when Pt-190 decays to Os-186?
An alpha particle is emitted when Pt-190 decays to Os-186. An alpha particle has a mass number of 4, and an atomic number of 2. When Pt-190 decays to Os-186, the mass number drops by 4, showing that an alpha particle is emitted, along with energy. The other form of particle that could be emitted is a beta particle, which has a mass number of 0. The difference between 190 and 186 is 4, thus showing the emission of an alpha particle. Source: High School Chemistry class
When uranium-238 atomic number 92 decays by emitting an alpha particle it becomes?
When uranium-238 (atomic number 92) decays by emitting an alpha particle, it transforms into thorium-234 (atomic number 90) because an alpha particle contains two protons and two neutrons, reducing the atomic number by two.
Which particle is emitted when an atom OF 85Kr spontaneously decays?
When an atom of 85Kr spontaneously decays, it emits a beta particle. This decay process involves the transformation of a neutron into a proton, with the emission of an electron and an antineutrino.
