Question

*Noble gas elements are chemically inert due to ________.*

1️⃣ Inner orbit are incomplete
2️⃣ Interior orbit are complete
3️⃣ All orbits are incomplete
4️⃣ All inner orbits, including the outermost orbit, are complete​

Answer 1

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All inner orbits, including the outermost orbit, are complete

Answer 2

d) all innet orbits-------------- are complete