Chemistry
Grade-9
Easy
Question
The true statement among the following is
- The reactive nature of Halogens increases from top to bottom of the table.
- The reactive nature for Halogens decreases from top to bottom of the table.
- The bottom elements of the inert gases are highly reactive.
- Inert gases are the most reactive elements in the periodic table.
Hint:
Down the group the atomic radius increases in size.
The correct answer is: The reactive nature for Halogens decreases from top to bottom of the table.
- The reactivity of halogen decreases down the group.
- Down the group the atomic radius increases in size with an increase of electronic energy levels.
- As the size increases it becomes difficult for the element to gain electron.
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