Three $\alpha - $ particles and one $\beta - $ particle decaying takes place in series from an isotope $_{88}R{a^{238}}$. Finally the isotope obtained will be
$_{84}{X^{220}}$
$_{86}{X^{222}}$
$_{83}{X^{224}}$
$_{83}{X^{215}}$
In a radioactive decay chain, the initial nucleus is ${}_{90}^{232}Th$. At the end there are $6\,\,\alpha -$ particles and $4\,\,\beta -$ particles with are emitted. If the end nucleus is ${}_Z^AX\,,\,A$ and $Z$ are given by
In which of the following nuclear reactions, the product is incorrectly matched ?
A nucleus $_Z^AX$ emits an $\alpha$- particle. The resultant nucleus emits a ${\beta ^ + }$ particle. The respective atomic and mass no. of the final nucleus will be
When $_{90}T{h^{228}}$ transforms to $_{83}B{i^{212}}$, then the number of the emitted $\alpha$- and $\alpha$- particles is, respectively
If Alpha, Beta and Gamma rays carry same momentum, which has the longest wavelength