Chemistry
Grade-9
Easy
Question
Why are the elements in Group 8A (18) called Noble gases?
- They were discovered by the royal family.
- They are more valuable than other gases.
- They rarely take part in a reaction.
- They are highly reactive.
Hint:
They rarely take part in a reaction
The correct answer is: They rarely take part in a reaction.
The elements in group 18 are called as noble gases as they are rarely reactive due to their outer shell being full.
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