which element is less reactive than other members of its group in the periodic table?
A. astatine
B. caesium
C. fluorine
D. rubidium
Answers
Answered by
1
Answer:
fluorine is the right answer
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0
Least reactive element out of the following.
Explanation:
- Out of the following given elements i.e. Astatine, Cesium, Fluorine, Rubidium, Astatine element is the least reactive than other elements.
- Being belong to halogen family astatine and fluorine both are very reactive as they have high electronegativity. But Fluorine is more reactive and astatine is less reactive.
- Cesium is the 50th most common elements and it is a alkali metal which is large in size. Being metal it is very reactive.
- Rubidium is also alkali metal and is very reactive. It react violently with water and it ignite spontaneously in air.
- Fluorine is very reactive but it handle with care as it can be very explosive.
Therefore, Option A is correct i.e. Astatine is less reactive element.
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