English

Complete the following equation describing nuclear decay. X819X28219O⟶eX− + _____ - Physics

Advertisements
Advertisements

Question

Complete the following equation describing nuclear decay.

\[\ce{_8^19O->e^- { +}}\] _____

One Line Answer
Advertisements

Solution

\[\ce{_8^19O->e^- { +} _9^19F}\]

Here, e- ≡ \[\ce{_-1^0\beta}\] is emitted and fluorine is formed.

shaalaa.com
  Is there an error in this question or solution?
Chapter 15: Structure of Atoms and Nuclei - Exercises [Page 343]

APPEARS IN

Balbharati Physics [English] Standard 12 Maharashtra State Board
Chapter 15 Structure of Atoms and Nuclei
Exercises | Q 14.2 | Page 343

RELATED QUESTIONS

What is gamma decay?


Describe alpha, beta and gamma decays and write down the formulae for the energies generated in each of these decays.


Write relation between decay constant of a radioelement and its half-life.


Decay constant of 197Hg is 0.017 h-1. What is its half-life?


The half-life of 35S is 87.8 d. What percentage of 35S sample remains after 180 d?


The half-life of 67Ga is 78 h. How long will it take to decay 12% of the sample of Ga?


0.5 g sample of 201Tl decays to 0.0788 g in 8 days. What is its half-life?


65% of 111In sample decays in 4.2 d. What is its half-life?


Show that half life period of radioactive material varies inversely to decay constant λ.


The half-life of a certain radioactive nucleus is 3.2 days. Calculate (i) decay constant (ii) average life of radioactive nucleus.


Most excited states of an atom have life times of about ____________.


The activity of a radioactive sample ____________.


A radioactive substance has half life of 3 hours. 75 % of the substance would decay in ____________.


What is beta decay?


The radioactivity of a sample is R1 at a time T1 and R2 at a time T2. If the half-life of the specimen is T, the number of atoms that have disintegrated in the time (T1 - T2) is proportional to ______.


A radioactive element has rate of disintegration 10,000 disintegrations per minute at a particular instant. After four minutes it become 2500 disintegrations per minute. The decay constant per minute is ______.


For radioactive substances, the fraction of its initial quantity (N0) which will disintegrate in its average lifetime is about ______.

(e = 2.71)


A radioactive sample S1​ having the activity A1​ has twice the number of nuclei as another sample S2​ of activity A2​ If A2​ = 2A1​ then the ratio of half-life of S1​ to the half-life of S2​ is ______.


The half-life of a radioactive substance is 10 days. The time taken for the `(7/8)^"th"` of the sample of disintegrates is ______.


The graph obtained by plotting loge (A) [A is the activity of a radioactive sample] against t (time) out of the following is:


The disintegration rate of a radio-active sample is 1010 per hour at 20 hours from the start. It reduces to 5 × 109 per hour after 30 hours. Calculate the decay constant.


The half-life of \[\ce{^238_92U}\] undergoing ∝- -decay is 4.5 × 10years. What is the activity of 1g sample of \[\ce{^238_92U}\]?


Define half-life period.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×