Amines are derivatives of 
Ammonia (NH₃) in which atleast one hydrogen atom is replaced by an alkyl group. Amines are further classifies as;
Primary Amines:                          In primary amines the nitrogen atom is attached to two hydrogen atoms and one alkyl group.
Secondary Amines:                             In secondary amines the nitrogen atom is attached to two alkyl groups and one hydrogen atom.
Tertiary Amines:                         In tertiary amines the nitrogen atom is attached to three alkyl groups, hence it has no hydrogen atom.
Below are three isomers of tertiary amines with molecular formula 
C₅H₁₃N.
 
        
             
        
        
        
F because it NEVER forms any cations in chemical reactions
        
             
        
        
        
I think the answer would be nitrogen
 
        
                    
             
        
        
        
D. It will lose 2 electrons in order to become stable.