A nucleus decays by {beta ^ + } emission foll | vedclass

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

Question

(A) In a ${\beta ^ + }$ decay (positron emission), a proton is converted into a neutron, a positron, and a neutrino. The process is represented as: $_

Vedclass · Accepted Answer

$Z - 1$ and $A$

Vedclass · Answer

(A) In a ${\beta ^ + }$ decay (positron emission), a proton is converted into a neutron, a positron, and a neutrino. The process is represented as: $_{Z}^{A}X ightarrow _{Z-1}^{A}Y + _{+1}^{0}e + 
u$.As a result, the atomic number $Z$ decreases by $1$, while the mass number $A$ remains unchanged.Subsequently, in a gamma ($\gamma$) emission, the nucleus transitions from an excited state to a lower energy state. This process does not change the atomic number $Z$ or the mass number $A$.Therefore, the final atomic number is $Z - 1$ and the final mass number is $A$.

$A$ nucleus decays by ${\beta ^ + }$ emission followed by a gamma emission. If the atomic and mass numbers of the parent nucleus are $Z$ and $A$ respectively, the corresponding numbers for the daughter nucleus are respectively.

Similar Questions

In the emission of $\gamma$-rays from a nucleus:

If $Alpha$,$Beta$,and $Gamma$ rays carry the same momentum,which has the longest wavelength?

$A$ radioactive decay forms an isotope of the original nucleus with the emission of which of the following particles?

Out of the following,choose the ray which does not travel with the velocity of light.

$A$ radioactive material $P$ first decays into $Q$ and then $Q$ decays to non-radioactive material $R$. Which of the following figures represents the time-dependent mass of $P$,$Q$,and $R$?

Vedclass Test Series

Exam Paper Generator

Online Exam Module