<span>Neutrons emit residual strong force without electric charge. This is why they have a stabilization effect. It is an interplay between the two particles which stabilize the nucleus.</span>   so the neutrons play a big role in the stability process.                 
        
             
        
        
        
Answer:
History of composition
Years	Material	Weight (grains)
1944–1946	gilding metal (95% copper, 5% zinc)	48 grains
1947–1962	bronze (95% copper, 5% tin and zinc)	48 grains
1962 – September 1982	gilding metal (95% copper, 5% zinc)	48 grains
October 1982 – present	copper-plated zinc (97.5% zinc, 2.5% copper)	38.6 grains
 
        
             
        
        
        
Answer:
D is the correct answer.
Explanation:
I took the test on A pex. Everyone make sure you look at your answers. They are NOT always in the same order. 
 
        
             
        
        
        
Answer:
28%
Explanation:
Basically, all o did was write the equations, balance it and solve for them. Also, at the place I stared, I used simultaneous equation to solve it. Multiplying by 8 and also 3.
It's a pretty straightforward question. 
At the final step that's missing, I Did
(y)C3H8 = 2.8 / ( 2.8 + 7.1)
(y)C3H8 = 0.28
 
        
             
        
        
        
Answer:
1. went on the first manned launch during the Apollo mission
2. responsible for all spacecraft systems 
3. 4500 hour
4. published All-American Boys
5. Joined back in space organization as a consultant to inspire next generation for mars