Answer:
d.
Explanation:
have a full 8 electrons on the outermost ring
 
        
             
        
        
        
Answer:
2 seconds
Explanation:
if a ball travels 1/2 meter per second, and there's 2 halfs in a whole, 1/2 meter per second x 2 halfs in a whole meter is 2 seconds to travel a meter
 
        
             
        
        
        
Answer: find the answer in the explanation 
Explanation:
When a magnet is placed at the centre of the paper, and the nails are sprinkled on the paper, what will happen to the nails is that, the nails will form a pattern on the paper according to the magnetic field of the bar magnetic pole.
Other phenomena you can observe are:
1.) The nails will align themselves and show some lines of forces which is equivalent to the magnetic field lines 
2.) The direction of the line of forces
3.) The strength of the magnetic field pole.
 
        
             
        
        
        
Answer:
Ur answer is Stationary Front
Explanation:
Stationary Front is when a cold air mass and a warm air mass but are at a standstill the boundary is called Stationary Front. 
 
        
             
        
        
        
<span>141.6 million mi,and idk what u mean by how</span>