A certain radioactive nuclide of mass number | vedclass

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

Question

(D) In radioactive decay involving the emission of an electron (beta decay,$\beta^-$),a neutron in the nucleus is converted into a proton and an elect

Vedclass · Accepted Answer

$m_y = m_x$

Vedclass · Answer

(D) In radioactive decay involving the emission of an electron (beta decay,$\beta^-$),a neutron in the nucleus is converted into a proton and an electron (and an antineutrino). The process is represented as: $n ightarrow p + e^- + \bar{
u}_e$. The mass number $A$ is the total number of protons and neutrons. Since one neutron is lost and one proton is gained,the total number of nucleons remains constant. The emission of $\gamma$ radiation involves the release of energy from an excited nucleus and does not change the mass number or atomic number. Therefore,the mass number of the daughter nucleus $(m_y)$ is equal to the mass number of the parent nucleus $(m_x)$. Thus,$m_y = m_x$.

$A$ certain radioactive nuclide of mass number $m_x$ disintegrates,with the emission of an electron and $\gamma$ radiation only,to give a second nuclide of mass number $m_y$. Which one of the following equations correctly relates $m_x$ and $m_y$?

Similar Questions

$A$ radioactive nucleus with $Z$ protons and $N$ neutrons emits an $\alpha$-particle,$2\beta^-$-particles,and $2$ gamma rays. The number of protons and neutrons in the nucleus left after the decay,respectively,are:

The nucleus produced due to $\alpha$-decay of the nucleus $_Z{X^A}$ is

What is radioactivity?

When a neutron decays,it produces . . . . . . .

$A$ nuclear reaction is given by ${}_{Z}X^{A} \to {}_{Z+1}Y^{A} + {}_{-1}e^{0} + \bar{\nu}$,which represents:

Vedclass Test Series

Exam Paper Generator

Online Exam Module