Chemistry
Grade-9
Easy
Question
Which family of elements is the least reactive?
- Alkali metals
- Alkaline metals
- Halogens
- Noble gasses
Hint:
Noble gases are very stable.
The correct answer is: Noble gasses
- Alkali metals react vigorously with water.
- Alkaline metals are reactive because they are highly electropositive.
- Halogens are most reactive elements.
- Noble gases have fulfilled outermost orbital, very stable and least reactivity.
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