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16. Which of the following have the same electron configuration as each other?

1. Na+1 and Ar
2. Na+1 and Ne
3. Na and Ne
4. Na and Na+1

2 Answers

7 votes

Answer:3

Step-by-step explanation:

User Supreme Pooba
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2 votes

Answer:3

Step-by-step explanation:

User Andy Burns
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