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question mark

The number of valence electrons in the
O2
ion is ______.

A) 4

B) 6

C) 8

D) 10

john wick , 5 Years ago
Grade 12
anser 2 Answers
Vikas TU
Dear student 
Oxygen has atomic no. 8. Its electronic configuration becomes 2,8,6 i.e it has 6 valence electrons. In O2−
 there are two more electrons. Hence number of valence electrons in the O2− is 8.
Last Activity: 5 Years ago
Vikas Amritiya
 
Oxygen has atomic no. 8. Its electronic configuration becomes 2,8,6 i.e it has 6 valence electrons. In O2−
 there are two more electrons. Hence number of valence electrons in the O2− is 8.
 
Last Activity: 5 Years ago
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