K stands for thousands
1 k = 1000 
1 milli = 0.001
covert 878kg to g
878 x 1000=878000 g or (8.78^5)
convert g to mg
878000 / 0.001 =878,000,000
=8.78^8
 ^ or E means power of
        
             
        
        
        
Answer:
 The answer for the calculation is as follows
17.48373
 
        
             
        
        
        
Answer:
1s2 2s2 2p6 3s2 3p6 4s2 3d 104 p6 5s2 4d 105 p2 
 
        
             
        
        
        
the answer is twenty eight
 
        
                    
             
        
        
        
Answer) It does not conduct electricity in any form. Consider the location of barium, chlorine, iodine, and strontium on the periodic table.  It conducts electricity when it is dissolved in water.
I hope it is helpful