What is the Mass Ratio of Alpha Particles, Neutrons, and Gamma Rays?

AI Thread Summary
The mass ratio of alpha particles, neutrons, and gamma rays is correctly identified as 4:1:0. An alpha particle, which is essentially a helium nucleus, consists of two protons and two neutrons, contributing to its total mass. Neutrons have a mass of approximately 1, while gamma rays have negligible mass. The initial assumption that the ratio was 1:1:0 was incorrect. Understanding the composition of alpha particles clarifies the mass ratio.
lingling
Messages
22
Reaction score
0

Homework Statement



which of the following mass ration is ture?

Mass of alpha-particles: mass of neutrons : mass of gamma- rays
equal to

A. 4 : 1 : 0
B. 4 : 0 : 1
C. 1 : 1 : 1
D. 1 : 1 :0


Homework Equations



nil

The Attempt at a Solution



I thought it's D
but the correct answer is A.
I can't get it..
 
Physics news on Phys.org
An alpha particle consists of 2 protons and 2 neutrons, which are of equal mass (well, very nearly, anyway).
 
wow... silly me.
Thank you!
 
Alpha particle (in the past aka "alpha radiation") is the common name for the helium nucleus.

Daniel.
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Can Geiger Counter Ticks be converted into particle/wave counts?
Replies
12
Views
2K
Ratio of atomic masses of two ideal gases
Replies
7
Views
1K
Collision of alpha with Be -> C + gamma
Replies
1
Views
2K
This 3 mass atwood problem is confusing me
Replies
4
Views
900
Kinetic energy of an alpha particle
Replies
2
Views
2K
What Is the Q-Value of Pu-239 Fission into Sr-92, He-4, and Neutrons?
Replies
27
Views
6K
Kinetic Energy for particles (alpha decay)
Replies
2
Views
3K
What is the meaning of the intercept of a particular solution to damped oscillator?
Replies
7
Views
866
Convert atomic mass into Joules
Replies
8
Views
5K
What is the total mass of an O atom?
Replies
7
Views
2K

Hot Threads

Recent Insights

Back
Top