Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • How many alpha and beta particles are emitted when Uranium <img alt="{ }_{92} \mathrm{U}^{238}$ decays to lead ${ }_{82} \mathrm{~Pb}^{206}" src="https://entrancecorner.oncodecogs.com/gif.latex?%7B

How many alpha and beta particles are emitted when Uranium { }_{92} \mathrm{U}^{238}$ decays to lead ${ }_{82} \mathrm{~Pb}^{206} ?
 

Option: 1

3 alpha particles and 5 beta particles
 


Option: 2

6 alpha particles and 4 beta particles
 


Option: 3

4 alpha particles and 5 beta particles
 


Option: 4

8 alpha particles and 6 beta particles


Answers (1)

best_answer

{ }_{92} \mathrm{U}^{238}\rightarrow {}_{82}\mathrm{Pb}^{206}+\mathrm{x\, \, {}_{2}\alpha ^{4}+y\: {}_{-1}\beta ^{0}}

Let \mathrm{x\, \&\, y} be the no.of alpha & beta particles emitted

Comparing reactant & products ,

\mathrm{238= 206+4x+0}
\mathrm{32= 4x}
\mathrm{x= 8\: \rightarrow (1)}

\mathrm{92= 82+2x+y\left ( -1 \right )}
\mathrm{92= 82+16-y}
\mathrm{y= 6\: \rightarrow (2)}

The correct option is (4)

Posted by

mansi

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Similar Questions

Trending Articles/News

anam-khan

JEE Main 2025: 11 from Kota coaching centres among 24 students with 100 percentile
anam-khan

Low JEE Main rank? Explore alternative paths for engineering admission
anam-khan

Gender-gap in JEE Main 2025: Female participation remains around 31%, overall pool drops by 7.09%

Latest Question