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.
230Th-----------alpha particle-----------226Ra
232Th-----------alpha particle-----------228Ra
Thorium-228 decays by alpha decay with a half-life of 1.9116 years to become Radium-224...
90228Th --> 24He2+ + 88224Rn
The nuclear reaction is:
230Th--------------- 226Ra + α
Th-230(alpha)Ra-226.
100Fm254 .........> 98Cf250 + 2He4
92Au 282Xe +13S
Po-216- -----------------> Pb-212
210 4 214 84 PO -------> 2 alpha + 86 RN
The equation for the alpha decay of 233U is: 92233U --> 90229Th + 24He representing the alpha particle as a helium nucleus. 223U can also undergo fission, but since this is an rather unpredictable process, there is no standard equation.
The equation for the alpha decay of 226Ra: 88226Ra --> 86222Rn + 24He The alpha particle is represented as a helium (He) nucleus.
The equation for the alpha decay of 265Bh is:107265Bh --> 105261Db + 24He where the 24He is an alpha particle or helium nucleus.
The equation for the alpha decay of 213At: 85213At --> 83209Bi + 24He where the alpha particle is represented as a helium nucleus.
Th-230(alpha)Ra-226.
Four times of the hydrogen atom.
100Fm254 .........> 98Cf250 + 2He4
Uranium-239 does NOT decay by alpha decay, it decays only by beta and gammadecay.
Radium-226--------------------Radon-222 + alpha
Plutonium-241 decays by both beta- and alpha decay. For beta- decay the equation is ...94241Pu -> 95241Am + e- + v-eNot asked but answered for completeness sake, for alpha decay the equation is ...94241Pu -> 92237U +24He2+
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.
92Au 282Xe +13S