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Q.

The oxygen atom has 8 electrons and 8 protons. So how many protons and electrons does oxide ion have?


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a

6 protons, 8 electrons

b

8 protons, 10 electrons

c

6 protons, 10 electrons

d

8 protons, 8 electrons 

answer is A.

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Detailed Solution

An oxide ion will have 8 protons and 10 electrons. This is because to form an oxide ion it gains 2 electrons from other atoms to complete its valence shell.
  
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