• Support PF! Buy your school textbooks, materials and every day products via PF Here!

Nuclear reaction?

  • Thread starter pivoxa15
  • Start date
2,234
1
1. Homework Statement
When (6 3)Li (i.e. 3 neurtrons and 3 protons) is bomarded with protons a nuclear reaction may occur in which an alpha particle is produced. What is the other product of this reaction? Write an equation for this reaction.


2. Homework Equations
conservation laws


3. The Attempt at a Solution
I got

(6 3)Li + (1 1)H -> (4 2)He +(3 2)He

but the back of the book doesn't agree.
 

Hootenanny

Staff Emeritus
Science Advisor
Gold Member
9,598
6
Have you considered any isotopes of Hydrogen?
 
2,234
1
The problem is the atomic and mass numbers must balance due to convervation. The question said only one other product is formed so it must be another Helium with two protons. Do you have other suggestions?
 

Hootenanny

Staff Emeritus
Science Advisor
Gold Member
9,598
6
Ahh sorry, my mistake I misread the numbers :frown:. From what I can see, your reaction obeys all the relevant conservation laws (although I've only studied elementary Nuclear Physics) and your helium isotope is stable. What does the book suggest as the answer?
 
2,234
1
Usually after a nuclear reaction the product is an isotope with more neutrons than the most common isotope? (3 2)He actually has less neutrons.

But anyway, the answer suggeted (2 1)H
How can this be?
 
391
2
What book are you using? It seems if you use that answer and add in an alpha particle, you just get Li-6 back again. I would have added in the proton as well, but maybe the reaction is

(6 3)Li + (1 1)p -> (4 2)He + (2 1)H + (1 1)p
 
2,234
1
So you are suggesting the bombardment proton will not stick and you end up splitting (6 3)Li into an alpha particle plus a deutrium. And the original proton leaves unscathed. Conservation is certainl obeyed. That seems to make sense as the probabilty that proton sticks to the nucleus is low? Does the bombarding particle usually stick with the product of the reaction? I guess it depends on the product. (3 2)He is less stable than (2 1)H so that could be why the proton is left out on its own.
 

Related Threads for: Nuclear reaction?

  • Posted
Replies
8
Views
2K
  • Posted
Replies
2
Views
2K
  • Posted
Replies
5
Views
2K
  • Posted
Replies
6
Views
2K
  • Posted
Replies
2
Views
2K
Replies
3
Views
12K
  • Posted
Replies
1
Views
1K
  • Posted
Replies
0
Views
1K
Top