Answer:
the less shielding of electrons 
 
        
             
        
        
        
Answer:
isoceles 
Explanation:
Because two sides are equal
 
        
                    
             
        
        
        
Barium cation has +2 charge and oxide anion has −2 charge
        
                    
             
        
        
        
Answer:
a) True.
Explanation:
If you turn the wheel in the direction of the turn before beginning the turning maneuver then it's possible that there might be not enough space available for turning and also if you are waiting for the traffic to get clear with rear  ended then it will get pushed forward onto the coming traffic.