Home
Class 12
CHEMISTRY
beta- decay from a radioactive nuclide l...

`beta`- decay from a radioactive nuclide leads to :

A

the formation of isobar of parent element

B

the increase in atomic number by one unit

C

the decrease in number of neutrons by one unit

D

the change in atoms mass by one unit

Text Solution

Verified by Experts

The correct Answer is:
A, B, C

`""_(0) n^(1) to ""_(+1) p^(1) + ""_(-1) beta` (beta particle ) , So .Z. decreases by 1unit and A remains same
Promotional Banner

Similar Questions

Explore conceptually related problems

n a sample of radioactive nuclide

In the disintegration of a radioactive element, alpha - and beta -particles are evolved from the nucleus. ._(0)n^(1) rarr ._(1)H^(1) + ._(-1)e^(0) + Antineutrino + Energy 4 ._(1)H^(1) rarr ._(2)He^(4) + 2 ._(+1)e^(0) + Energy Then, emission of these particles changes the nuclear configuration and results into a daughter nuclide. Emission of an alpha -particles results into a daughter element having atomic number lowered by 2 and mass number by 4, on the other hand, emission of a beta -particle yields an element having atomic number raised by 1. How many alpha - and beta -particle should be emitted from a radioactive nuclide so that an isobar is formed?

Staements I: In alpha decay of different radioactive nuclides, the energy of alpha particles has been compared. It is found that as the energy of alpha particle increases the half-life of the decay goes on decreasing. Staements II: More is the energy in any decay process, more is the probability of decaying the nuclide which leads to faster rate of decay.

Why do radioactive element decay?

The graph represents the decay of a newly-prepared sample of radioactive nuclide X to a stable nuclide Y. The half-life of X is t. The growth curve for Y intersects the decay curve for X after time T. What is the time T ?

In beta- decay n//p ratio :

A newly prepared radioactive nuclide has a decay constant lambda of 10^(-6) s^(-1) . What is the approximate half-life of the nuclide?

The energy spectrum of beta - particle [number N(E) as a function of beta - energy E] emitted from a radioactive source is

The decay of a radioactive element follows first order kinetic. Thus,

Radioactive element decays to form a stable nuclide, then the rate of decay of reactant ((d N)/(d t)) will vary with time (t) as shown in figure.