I'm not quiet sure...possibly an ionic bond.
        
             
        
        
        
Answer:
Protons have a much larger volume than neutrons.
 
        
                    
             
        
        
        
Answer:
The mass number of an isotope is the total number of protons and neutrons in an atomic nucleus. If you know that a nucleus has 6 protons and 6 neutrons, then its mass number is 12. If the nucleus has 6 protons and 7 neutrons, then its mass number is 13.
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Answer:
<em>The octet rule refers to the tendency of atoms to prefer to have eight electrons in the valence shell. When atoms have fewer than eight electrons, they tend to react and form more stable compounds. Atoms will react to get in the most stable state possible.</em>
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hope it helps