Answer: i belive its A but i may be wrong sorry if i am
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Answer:
There is a smaller chance of mutation.
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Answer:
A hydrogen atom is made up of a nucleus with charge +1, and a single electron. Therefore, the only positively charged ion possible has charge +1.
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Hope this helps
 
        
             
        
        
        
I studied this before and I'm pretty sure it's D (sorry if I'm wrong)