Since an alpha particle is a helium-4 nucleus, the resulting atom has an Atomic Mass that is 4 less, so 226 minus 4. Also, to get the element, look up the element number for radium, and subtract two from that.
226Ra --> 222Rn + 4He
222Rn --> 218Po + 4He
218Po --> 214Pb + 4He, 218At + e-
214Pb --> 214Bi + e-
218At --> 214Bi + 4He, 218Rn + e-
214Bi --> 210Tl + 4He, 214Po + e-
218Rn --> 214Po + 4He
210Tl --> 210Pb + e-
214Po --> 210Pb + 4He
210Pb --> 210Bi + e-
210Bi --> 206Tl + 4He, 210Po + e-
206Tl --> 206Pb + e-
210Po --> 206Pb + 4He
206Pb, stable
After the alpha decay of radium-226 the final product is radon-222.
226Ra---------alpha paricle---------222Rn
The mass of radium is 226 and the mass of radon 222.
After decay of radium-226 the final product is radon-222.
The isotope 222Rn (radon 222) is formed with the mass number 222.
226Ra------------alpha particle-----------222Rn (radon, a radioactive gas)
There is no thallium-230 isotope.Also no thallium isotope decays by alpha decay, the unstable isotopes all decay either by K capture or beta decay.
Oxygen-15 does not decay by alpha decay. It decays by beta+ decay to Nitrogen-15, giving off a positron and an electron neutrino. 715O --> (beta+)--> (t1/2 = 122.24 seconds) --> 615N + e+ + ve
92Au 282Xe +13S
The term apha decay is not correct; it is a nuclear reaction: 94Be + α -------- 126C + n Beryllium is a component of small neutron sources as Pu-Be, Ra-Be, Po-Be, Am-Be, using the above reaction.
In a nuclear reaction, the nucleus of an atom undergoes a change. Common examples would be alpha decay, beta decay, fusion, and fusion. In each of those cases, different elements are formed in the process. This never happens in ordinary chemical reactions. In chemical reactions, it is the electrons that are involved , not the nucleus of the atom.
231Pa---------alpha particle----------227Ac
The equation for the alpha decay of 210Po is:84210Po --> 82206Pb + 24He where He represents the alpha particle, which can also be viewed as a Helium nucleus.
Alpha decay
nuclear decay, such as alpha decay or beta decay.
Alpha nuclear decay
There is no thallium-230 isotope.Also no thallium isotope decays by alpha decay, the unstable isotopes all decay either by K capture or beta decay.
Oxygen-15 does not decay by alpha decay. It decays by beta+ decay to Nitrogen-15, giving off a positron and an electron neutrino. 715O --> (beta+)--> (t1/2 = 122.24 seconds) --> 615N + e+ + ve
Uranium-239 does NOT decay by alpha decay, it decays only by beta and gammadecay.
92Au 282Xe +13S
The term apha decay is not correct; it is a nuclear reaction: 94Be + α -------- 126C + n Beryllium is a component of small neutron sources as Pu-Be, Ra-Be, Po-Be, Am-Be, using the above reaction.
Alpha decay. Alpha particles are the same as a helium-4 nucleus.
The equation for the alpha decay of 226Ra: 88226Ra --> 86222Rn + 24He The alpha particle is represented as a helium (He) nucleus.