Question

Rank the nonmetals in each set from most reactive (1) to least reactive (3).
Neon
Selenium
Fluorine:

Answer 1

Answer:

The reactivity for the metal atoms in the periodic table increases as we go down a group and move from right to the left across a period. However, for non-metals the situation is opposite. The reactivity of non-metals decreases down a group and the reactivity also decreases when we move  from right to left across a period. Hence, we can rant the above elements as follows:

Fluorine

Selenium

Neon

Answer 2

Answer:

Fluorine  Selenium  Neon

Explanation:The periodic trend of reactivity depends on whether the elements are metals or nonmetals. For metals, reactivity increases down a group and from right to left across a period. Nonmetals do the opposite. For nonmetals, reactivity increases up a group and from left to right across a period