Question

Oxygen has an electronic configuration (2,6). It gains 2 electrons to form oxygen ____
A. Anion
B. Oxide ion
C. Both A & B are correct

Answer 1

The answer is option B. oxide ion.

Oxygen is present in group 6. It has six electrons in its highest energy level, so, it gains two electrons from one or two other atoms in reaction and forms an oxide ion, i.e., O2− to attain noble gas configuration.  

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Answer 2

Option B

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Oxide Ion

• Oxygen is present in group 6.
• It has six electrons in its highest energy level, so, it gains two electrons from one or two other atoms in reaction and forms an oxide ion
• i.e., O2− to attain noble gas configuration.