A radioactive element forms its own isotope a | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) For a radioactive element to form its own isotope,the atomic number $(Z)$ must remain the same,while the mass number $(A)$ changes.An $\alpha$-par

Vedclass · Accepted Answer

$2 \beta$-particles and $1 \alpha$-particle

Vedclass · Answer

(B) For a radioactive element to form its own isotope,the atomic number $(Z)$ must remain the same,while the mass number $(A)$ changes.An $\alpha$-particle emission decreases the atomic number by $2$ and the mass number by $4$ $(_{2}He^{4})$.$A$ $\beta$-particle emission increases the atomic number by $1$ and keeps the mass number unchanged $(_{-1}\beta^{0})$.To keep the atomic number $Z$ constant after $3$ disintegrations,we need to balance the change in $Z$: $\Delta Z = (n_{\alpha} 	imes -2) + (n_{\beta} 	imes 1) = 0$.Given $n_{\alpha} + n_{\beta} = 3$,substituting $n_{\alpha} = 1$ gives $(-2) + (2) = 0$.Therefore,the emission of $1$ $\alpha$-particle and $2$ $\beta$-particles results in the same atomic number,forming an isotope.

$A$ radioactive element forms its own isotope after $3$ consecutive disintegrations. The particles emitted are

Similar Questions

The atomic weight of thorium is $A = 232$ and the atomic number is $Z = 90$. After disintegration,the final element obtained is $Pb$,which has $A = 208$ and $Z = 82$. In this process,the number of emitted $\alpha$ and $\beta$ particles are:

In the radioactive disintegration series,for the process $_{92}^{238}U \xrightarrow{\alpha} X \xrightarrow{\beta^-} {}_{Z}^{A}Y$,the values of $Z$ and $A$ respectively are:

Radioactive nuclei that are injected into a patient collect at certain sites within their body,undergoing radioactive decay and emitting electromagnetic radiation. These radiations can then be recorded by a detector. This procedure provides an important diagnostic tool called:

During negative $\beta$-decay,which of the following processes occurs?

$A$ radioactive nucleus of mass $M$ emits a photon of frequency $v$ and the nucleus recoils. The recoil energy will be

Vedclass Test Series

Exam Paper Generator

Online Exam Module