When an oxygen atom forms an ion, it gains two electrons. What is the electrical charge of the oxygen ion?

A.
+1

B.
+2

C.
-2

D.
-1

Question

When an oxygen atom forms an ion, it gains two electrons. What is the electrical charge of the oxygen ion?  
 
 

 
 

  

  A. 
  +1   
   

 
 

  

  B. 
  +2   
   

 
 

  

  C. 
  -2   
   

 
 

  

  D. 
  -1

anonymous · Answer

c: -2 because it gains two electrons and each one has a charge -1, it gains two then the electrical charge of the oxygen ion is -2

anonymous · Answer

Thankyou