Question

Where are the most reactive nonmetal elements found on the periodic table?

at the top of group 17
at the bottom of group 17
at the top of group 18
at the bottom of group 18

Answer 1

I would say at the top of group 17 but tbh its through out the whole group of 17 and 18....just about

Answer 2

Answer: Option (a) is the correct answer.

Explanation:

Elements of group 17 are fluorine, chlorine, bromine, iodine and astatine. And, it is known that size of elements increases on moving down the group due to increase in number of electrons.

Since, atomic number of fluorine is 9 and its electronic distribution is 2, 7. So, it needs just one more electron to stabilize itself and fluorine has the smallest size as compared to rest of the atoms of its group so, it has the ability to attract an electron more strongly towards itself.

Also, due to small size nucleus of fluorine is able to pull electrons strongly towards itself. As a result, there will be increase in its reactivity.

Thus, we can conclude that the most reactive non-metal elements are found on the periodic table at the top of group 17.