Alpha decay is basically a helium atom, so 235-4= 231. And 92-2=90 (Uranium's atomic number minus helium's). The element with atomic number 90 is Thorium. The mass is 231, so you should have Th-231 (Thorium-231).
90Th232 undergoes alpha decay to form 88Ra228. Remember, in alpha decay, a helium nuclei is emitted, comprising two protons and two neutrons. As a result, the atomic number goes down by 2, and the atomic mass number goes down by 4.
Transmutation, which is the change of atoms from one element to another.
Uranium, for example the isotope 235 is an emitter of: gamma, alpha and beta radiations, also spontaneous fission neutrons. But, for each isotope of uranium the radiation energies, and their percentage is different.
An alpha particle is a helium-4 nucleus. Look up the number of the element, and subtract two from that (since helium has 2 protons). As for the number, subtract 210 - 4 (since the alpha particle has an atomic mass of 4).
They don't. Only atoms really have an atomic number, which is the number of protons in each atom, so when that number changes as in alpha and beta radiation the atom no longer has a neutral charge and becomes an ion. Gamma radiation is an electro-magnetic wave so it doesn't affect the atomic number and the particle is still an atom. Hypothetically, nd I'm not sure it's possible, alpha radiation would reduce the atomic number by 2, beta would reduce it by 1 and gamma doesn't reduce it at all anyway.
The first radioactive element formed when uranium-238 decays is thorium-234. Uranium-238 undergoes alpha decay to form thorium-234.
It is 90.
90Th232 undergoes alpha decay to form 88Ra228. Remember, in alpha decay, a helium nuclei is emitted, comprising two protons and two neutrons. As a result, the atomic number goes down by 2, and the atomic mass number goes down by 4.
I'm pretty sure its alpha.
Alpha, Beta, and Gamma
Radon-222 undergoes alpha decay to produce polonium-218as a daughter.
Alpha and beta decays.
Transmutation, which is the change of atoms from one element to another.
Uranium has three allotropic forms: alpha, beta and gamma; each allotrope exist only in a determined range of temperatures.
alpha decay
Transmutation, which is the change of atoms from one element to another.
Uranium, for example the isotope 235 is an emitter of: gamma, alpha and beta radiations, also spontaneous fission neutrons. But, for each isotope of uranium the radiation energies, and their percentage is different.