your answer is.....
D. have a large atomic radius
although they also increase going from left to right so if D is incorrect, B might be your answer. it depends on context of the lesson.
 
        
             
        
        
        
Well visual and perceptual are both the way you see things and tactile is touch so it has to be Olfactory
        
                    
             
        
        
        
Answer:
     E = -4000 N / C
Explanation:
The potential and electric field are related
          V = - E s
           E = - V / s
we reduce the magnitudes to the SI system
           s = 4 mm (1 m / 1000 mm) = 0.004 m
we calculate
           E = - 16 /0.004
           E = -4000 N / C
 
        
             
        
        
        
Yes, but there is only 1 atom like that and is is hydrogen. Hydrogen is the only element that could have a nucleus with one proton and no neutrons exist.
        
             
        
        
        
Answer:
(a) A = m/s^3, B = m/s.
(b) dx/dt = m/s.
Explanation:
(a)

Therefore, the dimension of A is m/s^3, and of B is m/s in order to satisfy the above equation. 
(b) 
This makes sense, because the position function has a unit of 'm'. The derivative of the position function is velocity, and its unit is m/s.