Answer:
7 
Explanation:
The mass number is neutrons plus protons
 
        
             
        
        
        
It would probably stop moving. Earth has motion and we do do. without the world moving, there would be No wind at all.
        
             
        
        
        
Explanation:
Let us assume that the value of  =
 = 
Also at 1500 K,  =
 = 
                      
Relation between  and
 and  is as follows.
 is as follows.
                   
Putting the given values into the above formula as follows.
                   
          
                 
Also,     
or,                
                                = 
                                = 
Thus, we can conclude that the value of  is
 is  .
.
 
        
             
        
        
        
D. F 
Molecules are a group of bonded atoms but Fluorine stands on its own
        
                    
             
        
        
        
PE, GO, XY - I am  probably wrong xoxoxoxoxxo