8 x 10-6 m
1 point
2. Noble gases exist as-
Diatomic
Monoatomic
Polyatomic
None of these
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6
Answer:
MONOATOMIC
→ Noble gases are monoatomic because they have complete octet (apart from Helium, which has duet) , hence they are highly stable on their own and do not react with others to form compounds in standard temperature and pressure conditions.
→ Noble gases otherwise known “inert gases”.
→ That is because the outer shell is completely filled.
→ They have zero valency.
→ The capacity to either gain or accept electron is zero.
→ They usually do not combine with other atoms to form molecules.
→ They prefer to stay as monoatomic because they're already in their stable electronic state.
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