Chemistry
Grade-9
Easy
Question
Which chemical family is highly reactive and exists in all three states of matter at room temperature?
- Noble gasses
- Halogens
- Radioactive elements
- Metalloids
Hint:
Halogens
The correct answer is: Halogens
Halogens are highly reactive and exist in all three states of matter at room temperature as they are the most electronegative element of each period of the atomic table.
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